Elastic Collisions In A Cue Ball

Elastic Collisions In A Cue Ball
In a pool game, the physics are the determining factor to almost every game. The balls must go into
each pocket at the long edges of the pool table by letting the cue ball hit it. After it is hit, it heads
into a specific direction based off the momentum, mass, and angle of the hit. This experiment will
showcase the results of multiple collisions on two objects of equal mass. A certain physics equation,
called elastic collision, demonstrates this mathematically. Elastic collision, given by 1/2mvc^2 =
1/2mva^2 + 1/2mvb^2, only applies if the momentum and kinetic energy of the objects colliding are
conserved. Once the masses cancel, the equation is simplified to a familiar equation: the
Pythagorean theorem, also known as a^2 + b^2 = c^2 (Real World Physics 1). ... Show more content
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However, this is taking into account the conversation of kinetic energy and momentum. These two
laws state that kinetic energy and momentum will be constant when it transfers from one object to
another. Inelastic collision describes the collision between two objects that generally lose their
energy, a more common collision since a little energy is almost always lost during any sort of action.
By the well–known law of the conservation of energy, none of this energy is destroyed. It is just lost
as the cue ball continues to travel, making the transfer of energy less efficient. This experiment will
be focusing on the collision of smooth spheres without friction being a major variable in the
experiment due to how pool balls are made, conserving the momentum for the most part
(Hyperphysics
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Memorandum of Law
MEMORANDUM TO: John Doe FR: Patricia Oswalt DA: Monday, April 01, 2013 RE: Mary Smith
– auto accident / medical malpractice Introduction As requested, I have reviewed the facts of the
above–captioned file, along with the applicable law and summarized same in this memorandum.
Mrs. Mary Smith suffered an injury to her right ankle in an automobile accident on 10/3/95. After
surgery and months of rehabilitation, Mrs. Smith still suffers daily. I have researched the facts
regarding a personal injury action against Paul Joseph, as well as a medical malpractice action
against the medical providers. Applicable Law Personal Injury Statute of Limitation – 4 years from
the date of the incident giving rise to the action. Fla. ... Show more content on Helpwriting.net ...
In this case, the accident is the proximate cause of Mrs. Smith's injuries and the medical providers
are the intervening cause, as their breach of duty exacerbated Mrs. Smith's injury to the point of
permanent disability and disfigurement. Possible Defendants Paul Joseph, the other driver –
Florida's no fault law includes an "injury threshold" limiting law suits to claims of great bodily
injury, permanent disability or disfigurement. Statutes, however, are unclear as to exactly what
constitutes great bodily injury. It is unlikely that Paul Joseph would be named as a defendant in this
action, as Mary's PIP insurance would be the proper party. Under Florida's Civil Remedy Statute,
§624.155(1)(b), Mary's insurance company is required to act in her best interests. Should they act in
"bad faith" by failing to settle for a reasonable amount, Mary may sue for an amount which is "a
reasonably foreseeable result of a specified violation of this section by the authorized insurer and
may include an award or judgment in an amount that exceeds the policy limits." Fla. Stat.
§624.155(8) However, the statute goes on to state that "No punitive damages shall be awarded under
this section unless the acts giving rise to the violation occur with such frequency as to indicate a
general business practice and these acts are: (a) Willful, wanton, and malicious; (b) In reckless
disregard for the rights of any insured; or (c) In reckless disregard

Prosocial Behavior And Behavior Behaviors
Prosocial behavior is behavior that is intended to benefit someone else; behaviors such as helping
others, comforting, sharing, cooperative, reasoning, defending, and showing (Fiske, 2014). Prosocial
behavior is doing things for others with expecting something in return, but their different types of
prosocial behaviors. There are Egoism, altruism, collective and principlism (Fiske, 2014), all similar
but also different. Altruism is helping someone out of consideration rather than one owns needs
(Fiske, 2014)). When you are thinking about helping someone you always assume they are only
doing it so they can receive something in return but why not think they are doing it just because they
want to. When it comes to altruism, it is said that people to do things because they feel empathy. The
empathy–altruistic hypothesis states if a person is in need empathetic feelings come such as
sympathy, compassion, tenderness and like (Hogg & Cooper, 2007). If there is a car on the side of
the road with a flat tire, many people will not stop they will keep going, they may have the
assumption that a tow truck is coming or someone else is going to come, especially if they are in a
rush they will not stop. But you have some people who will feel emotions and stop because they
would not want this happening to them, they will pull over and help regardless of what they have to
do, or about to be late to. There could also be a downfall to this. Beggars take advantage of people
who are empathetic,

The Law Of Collision Between Kinetic And Elastic Energy
It has been discovered that kinetic energy from a head collision can transfer to the brain in the form
of kinetic and elastic energy which can cause serious brain damage through deformation (Moore,
2016). Sports helmets are specifically designed to dissipate as much energy from a collision before
it reaches the brain. Also, the helmet prevents the impact from fracturing the skull, causing more
serious damage. Engineers use the law of conservation of energy to design the helmets. The helmets
dissipate the energy by transforming it into kinetic and elastic energy that doesn't reach the brain
(Moore, 2016). The energy is also transformed into sound and heat due to the friction from the
contact. Engineers use the same concepts that I've learned in class about the law of conservation of
energy which states that energy cannot be created nor destroyed, but it can only transform into
different forms of energy. We've learned that the initial amount of energy is equal to the final
amount of energy. According to this, the total kinetic energy from the collision is equal to the total
energy at the end which consists of forms like elastic, thermal, kinetic, and sound energy. By
splitting the total amount of energy into different forms of energy that are stored or directed away
from the head, the amount of energy affecting the brain is much less ("Newton's Cradle: Colliding
football helmets : Physics 101", 2012).

Personal Narrative On Christmas
Nelles
Oct. 9, 2017
ENL0078_320
Personal Narrative
The air was crisp outside, it was nearing Christmas in our small little city named Belleville.
Everyone seemed to be out and about finishing their last–minute Christmas shopping and the city
had a busy, but happy feel to it. The ground had a white blanket of snow on it that had just fallen
during the early hours of the morning. My mom was taking me to the mall so that I could get
pictures taken with Santa, one of my favourite parts about Christmas. As I was sitting in my car seat
all bundled up in my snow suit, clutching my favourite stuffed bunny all I was fixated on was what
to ask Santa for Christmas. I was 7–years–old with big brown eyes that glared out the window with
the unruliest hair you could ever imagine. As we stopped at our final red light before our destination,
we both witnessed an extremely bad car wreck. It was one of those car wrecks that seem to happen
in slow motion, so slow that you can almost scream "Watch out!". All of a sudden, the women that I
viewed as my ordinary suburban mom dashed out of our warm van to face the crisp, windy weather.
That day she risked her life to save another. She was able to keep the driver of the SUV stable until
the ambulance arrived. This was the first time I ever saw my mom as the true person she is. Selfless,
courageous, she stepped in not even on a first name basis. She didn't know that person in the SUV
and they didn't know her. That was the day that I decided I wanted

Lab Report On The Law Of Conservation Of Momentum
MMAN1300
Dynamics Lab Report 1
Made By: Krimil Patel
Student number: z5076441
S2–2015
Impulse–momentum lab
Tables of Content
Introduction....................................................................................Pg–3
Theory.............................................................................................Pg–4
Apparatus........................................................................................Pg–6
Method.............................................................................................Pg–7
Sample Calculations........................................................................Pg–8
Results.............................................................................................Pg–10
Discussion........................................................................................Pg–11
Conclusion........................................................................................Pg–12
References........................................................................................Pg–13
Introduction
The law of conservation of momentum states that when two bodies collide with one another, the
momentum before and after the collision is exactly the same if there are no external forces acting on
the system. Although when there are external forces acting there will be a change in overall energy
of the objects, as some of it may be lost to friction. Some of the energy is lost due to the deformation
of objects caused by the collision. Hence during the time interval of the collision the velocities of
these objects tend to change. By using the ratio of the velocities before and after the collision their

elasticity can be calculated. This measure of elasticity is known as the coefficient of restitution. This
coefficient is dependent on the material of the objects.
This lab details the experiment performed to calculate and compare the coefficient of restitution of a
steel ball

The Analogy in the Short Story Xmas by Russel Banks
A person's past life is really important because it shapes the individual to be the kind of person
he/she will be in the future. No matter how much we try, we can't rid ourselves of our past nor can
we run away from it. It's embedded in our memories and will always remain to do so. In the short
story "Xmas", by Russell Banks, we meet the protagonist, Gregory Dodd who tries to run away
from his past and avoid it. Eventually, the reader will learn what the consequences of such an action
can lead to. Through the epiphany that the protagonist, Gregory Dodd, undergoes, Banks illustrates
the consequences of avoiding one's past; the nature of the epiphany is defined by the car collision,
and ultimately leads Gregory to a wakeup call and a deeper self–realization, leaving him with some
heavy thinking to do about his life. The forces that contribute to intensifying the moment of
epiphany are seen in the plot and symbolism.
In his story, Banks makes us meet our main character, Gregory Dodd, who is going through a
psychological crisis. After ending his two previous marriages, first in adolescence and second–a
fifteen–year–long marriage–in late manhood, he is now dating a woman named Susan who is ten
years younger than him. Gregory's life–as successful and fulfilled as it may seem at first glance, is
far from how it is portrayed to be in actuality. On closer inspection, we see that Gregory lives in
self–deception. One of his first delusion surfaces when we come across his fear of

Should Texting And Driving Be Banned?
Malik Favor
June 1st, 2017
Ms.Mcghee
English
Should Texting and Driving be Banned?
WAIT, YOU 'RE DRIVING DON'T TEXT THEM BACK
OR YOU COULD DIE OR GET SERIOUSLY INJURED!! Not only is this dangerous to your life
but what about the other people driving around you. Young drivers are more prone to text when
driving and is the primary cause of a car crash for teenagers. To lessen this problem texting and
driving should be banned/illegal in all states to reduce the risk of car crashes. Texting while driving
is put in a category called "Distracted
Driving". Distracted driving is any activity that diverts your attention away from driving. This may
include texting/talking on the phone, eating and drinking, ... Show more content on Helpwriting.net
...
The only real way to stop distracted driving is to
Get rid of the distraction. Sometimes this is possible to get rid of distractions, but the law can't stop
someone from talking to a passenger in the car or eating and drinking. Schools and training can only
do so much to prevent distracted driving and almost half of those drivers ignored what is being told
to them about the facts and warnings about the dangers of texting and driving. Nationwide only 44
states have banned drivers from texting and driving. These states are Alabama, Alaska, Arkansas,
California, Colorado. Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho,
Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, MIchigan,
Michigan, Minnesota, Mississippi, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico,
New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island,
South Carolina, South Dakota, Tennessee, Utah, Vermont, Virginia, Washington, West Virginia,
Wisconsin, and Wyoming. These states also have penalties and the maximum goes from a low 25
dollars to a high 10,000 dollars.
NHTSA has been fighting against distracted
By educating people about the dangers of distracted driving, and having the state and local police
enforce the laws even more to keep us safe. The state makes the laws affecting distracted driving
and the NHTSA plan strategies to address the

The King Of A Vast Empire
A Family's Nightmare in "The King of a Vast Empire" In Danielle Evans's collection of short stories
Before You Suffocate Your Own Fool Self, the story "The King of a Vast Empire" talks about how
traumatic events affect a family's bond. The main trauma in this story is a car accident that haunts
this family. Liddie, Terrance, and their parents got in a car accident one night. The dad was driving
the car when he was going around a dark curve in the road and hit another car. The other car was
stopped in the middle on the road because there was a fallen lumber in the middle of the road that
their dad was trying to remove. The other car did not have their emergency lights on. When the dad
hit the car, all of the kids in the backseat was killed ... Show more content on Helpwriting.net ...
The father's drinking and the mother's temper result from the emotional impact of the devastating
accident. The family eventually had to move to other city because they could not bear living their
anymore because of the car accident. Not only did the accident affect the mom and dad, it affected
the children. A traumatic event can have a serious impact of the children that were involved in the
car accident. It was not until a year after the car accident that Liddie started to talk again. The kids
grew closer together. "'The King of a Vast Empire' perfectly captures what it's like to be a brother
and sister united by grief and misunderstanding" (VanDerWerff). The siblings were united by the
trauma of the car accident and became better friends. They only paid attention to yell at them.
Terrance would confront Liddie when she would have nightmares from the car accident: "Liddie
brought her nightmares to me; I did what I could to comfort her" (Evans, "The King of a Vast
Empire." 128). Liddie and Terrance grow closer to one another. When Liddie decided not to come
home from Thanksgiving when she was in college, Terrence's mom bought him a ticket and went to
see her for the Thanksgiving. When Liddie had a crazy idea or wanted to change her major, Terrance
supported her when her mom disapproved of the change of major. Even though the kids had a hard
time after the accident, they recovered and went on with their lives. The other family in the car lives
where

A Day Concrete Test : Introduction And Objective
I4 Day Concrete Test
Introduction and Objective
In civil engineering construction, one of the most determining factors for the stability of a structure
is the maximum strength attained by concrete after 14 and 28 days. As such, it is often critical for an
engineer to test a particular test concrete cylinder mix for the ultimate compressive strength and then
compare it with the design strength before allowing the concrete mix to be replicated in large
quantities. The factors that affect the ultimate compressive strength of concrete include the amount
of aggregates and the ratio of water to cement.
This experiment was therefore aimed at determining the ultimate compressive strength of different
concrete samples after 14 days. Additionally, other properties of the concrete such as modulus of
elasticity and Poisson ratio were also determined.
Engineering Team Members
1.
2.
Procedure for the Experiment
The procedure of the experiment consisted of two main parts. However, before the experiment was
started, the concrete cylinders which had already been cured for 14 days were removed from a
curing tank and dried using a towel. Thereafter, the length and diameter of the specimen were
measured twice and the average value for each dimension noted. The compressive strength
experiment was done in accordance with ASTMC39 standards in which the test concrete cylinder
was placed under a compressive testing machine with neoprene caps and then the switch turned on
so as to commence the

India Is The Third Largest Country Of The World Essay
At one–third the size of the United States, India is the seventh largest country in the world at
approximately 3,287,263 km². Located in Southern Asia, India has a population of 1,333,521,673, a
total of 441 people per square kilometer per a 2015 census conducted by the World Bank
(Population Reference, 2015, p. 1). Despite its size, population and its presence in the world
economy at number 10, its gross domestic product (GDP) is worth approximately2073.54 billion US
dollars and represents 3.34% of the global economy (India's gross domestic product, 2016, p. 1). As
of 2001 72% of India's population resides in rural areas, however, with growing industry and need
for urbanization, its population is becoming more mobile resulting in higher injury related accidents.
Insufficient and nonexistent prehospital and trauma care, the government of India has failed to
recognize injury and trauma as a major public health problem in lacks the necessary infrastructure to
establish and define prehospital care (Joshipural, Shah, Patel, & Desai, 2003, p. 686). However,
India's pre–hospital and trauma care is beginning to evolve in its larger cities by way of local
initiatives and supported by private funds and overseas groups (Tintinalli, Cameron, & Holliman,
2010, p. 28). January 2009, the Indian Journal of community medicine published an article
estimating 16,000 people die from various injuries around the world every day and represent 12% of
the global burden of disease with India

Physics Of The Accident Investigation
Based on the annual global road crash statistics, nearly 1.3 million people die in road crashes each
year, on average 3,287 deaths a day. More than half of all road traffic deaths occur among young
adults ages 15–44. The top causes of vehicular accidents are distracted driving, speeding, drunk
driving, reckless driving and many more. Having said that, investigations are needed to be able to
analyze the causes of the accident. In such cases, it cannot be denied that science is directly involved
to fully know the extent and circumstance of an accident. Therefore, it is sufficient to say that
specifically, physics, as science, plays an important role in police investigations. Furthermore, it can
be said that policemen are accountable to utilize physics in their investigations. Investigations begin
by surveying the accident site. To be able to apply Physics into the accident investigations, the first
step must involve getting data from the environment and accident site. As such, necessary variables
must be first obtained to be able to apply certain Physics concepts into the investigation. Variables
can be in the form of (1) primary observations and (2) measurement variables and evidences from
the accident or crash site. First, to be able to explicate the needed information to apply Physics
concept, police investigators must first obtain a basic viewpoint of the crash site. Specific
observations must be noted down to be able to complete the variables needed for Physics

Final Momentum Using Average Value Lab Report
Calculation 3.1: Initial Momentum using Average values p=m_i v_i p=(0.11337)(0.86)
p_initial=0.097 kg*m/s
Calculation 3.2: Final Momentum using Average values p=m_f v_f p=(0.11337)(–0.186) p_final=–
0.021 kg*m/s
Calculation 3.3: Change in Momentum
∆p=〖mv〗_final – 〖mv〗_initial
∆p=(0.11337)(–0.186)–(0.11337)(0.86)
∆p=–0.119 kg*m/s
Calculation 3.4: Impulse Calculation from Figure 3.4a found below:
I=F_max*∆t
F_avg=1/2 (0.20s)*(0.68 N)
F_avg=0.068 N
Figure 3.4a: Graph of Impulse for Part Three with Time Intervals Present
Calculation 3.5: Impulse and Change in Momentum Percentage Error
|(0.119N–0.068N )/0.094N|*100
=54.26 %
Table 4.1: Summary Table Mass of Truck (kg) Initial Velocity (m/s) Final Velocity
(m/s) Max Force (N) Length of ... Show more content on Helpwriting.net ...
This is an almost insignificant change in momentum so therefore it can be said with confidence that
the law of conservation of momentum was conserved in this scenario.
For the second collision in part one, the change in momentum from initial conditions to final
conditions was 59.9 percent. This is change in momentum indicates that an external force (such as a
friction force) was present on the two cars. This friction force was caused by the additional mass
added onto Truck A so this added force from the weight on Truck A justifies the idea that the law of
conservation of momentum is only applicable when there are no other outside forces acting on the
system.1,3 This outside friction force explains why the percent in the change of momentum from
start to finish is 59.9 percent.
For the third collision in part one, the change in momentum from initial conditions to final
conditions was 28.7 percent. This is change in momentum indicates that an external force (such as a
friction force) was present on the two cars. This friction force justifies the idea that the law of
conservation of momentum is only applicable when there are no other outside forces acting on the

system.3 This additional force explains why the percent in the change of momentum from start to
finish is 28.7

The Death Of A Car
"Where u at." Those were the last words 18–year–old Mariah West saw before her car struck a
bridge and spiraled into oncoming traffic. She was ejected from the car, and then slid down the
roadway causing her face to get disfigured and her skull to get crushed. Unfortunately, Mariah died
on May 21st, 2009. When you step into a car you don't expect anything life–threatening to happen.
Safety is taken for granted as soon as one steps into an automobile. Most people in the world don't
have a single doubt about hopping in a car to get from Point A to Point B. Being a passenger or
conducting a moving vehicle is something that has become second nature to us. It has become
somewhat normal that most people developed habits meanwhile they are driving. In today's society
we see people texting, talking and dialing on their phone, consuming meals, applying make–up and
even reading a book. This just amazes me, how people are capable of focusing on the road and at the
same time juggle another activity. The truth is no matter how much we say we can multitask, we
really can't. Multitasking is unfortunately just a myth and there are studies to prove it. A
Neuroscientist at MIT named Earl Miller, states that people are not multitasking; the brain is simply
just deluding itself. Although it may seem as if we are simultaneously doing a task, we are not. The
reality of the situation is that we are switching our focus between the errands very rapidly. So let's
say an individual is talking on

Advantages And Disadvantages Of Helmet
Helmets have been around since warfare. Nowadays, helmets are used for many things such as
sports, vehicles and fashion. Most current helmets are made up of a shell, a liner and a strap
(bhsi.org). The shell is the outer layer of the helmet and is usually made of plastic and glued on top
of the liner. The liner is the most important part of the helmet as it provides the most protection. It is
usually made of Expanded Polystyrene foam. As the foam crushes, it converts the mechanical
energy of the collision to other forms of energy such as heat, as well as, lengthens the time of impact
which reduces the impact force (F↓= I/T↑). These days some helmets have different layers of foam
with different densities to accommodate to different kinds of ... Show more content on
Helpwriting.net ...
Standards should help ensure the safety of products. Making new standards, however, are affected
by customer's willingness to buy the product, and thus, we do not have very safe standards. Helmet
standards, just like any other standards, could also mislead people into being overconfident of the
certified product. Lab tests, which are used to make standards, also cannot accurately stimulate the
effects on the skull because they use a rigid head model. As time passes and impacts occur,
standards could also become meaningless because the foam starts to weaken. To accommodate to
this, you could either buy another helmet after each impact, which could be expensive, or use the
same helmet and endanger

Social Media Dangers
Social media has the potential to be very destructive to society. Although it's use can be for
beneficial reason, the visual strongly suggests socials media's influence can become dangerous;
using font that makes an urgent message, faded grey background and colors, and social media logos
that are placed inside of bombs that fill the entire screen; which emphasize on the dangers of that
influence. The font on the image quotes "Weapons of Mass Distraction." This saying is like the
saying "Weapons of Mass Destruction." The font resembles wording used in war posters in the early
1900s. It is demonstrating that social media is dangerous. Social media in the twenty–first century
has become one of the main reasons for many of societies issues today. Dangers can vary from
accidents, identity theft and many more. Some of accidents including car accidents which are trying
to be prevented today by state laws in the United States. Today in America one out of every four car
accidents are due to people not paying attention and being on their cell phones. Early in 2017, a girl
in California was driving and recording a live stream on Facebook. While she was on her phone, and
recording while she was in control of the vehicle got into a car accident which killed her 14–year–
old sister. When most people think about dangers of social media they think about car accidents, and
how many people die every year due to electronic caused deaths. There are more dangers that lie in
the shadows. The

Seatbelts, Your Personal Life Saver
Seatbelts, Your Personal Life Saver
In the past years, car accidents are the leading cause of death. In 2009 alone, crashes killed over
33,000 people and injured another 2.2 million. More than half of the people killed in car crashes
were not restrained at the time of the crash. I know most of you guys probably don't want to hear me
talk about statistics or about seatbelts and why you should wear them and listen to some boring
speech you have heard time and time again. But please hear me out. You might have excuses that
sound logical in your mind, but what are you going to do when your excuses get you killed? First of
all, I know most people think that seat belt laws are ridiculous and keep you from having fun. ...
Show more content on Helpwriting.net ...
Second of all, many accidents occur with not wearing a seatbelt, my mom was able to witness one.
About a month ago, my mom was on jury duty for a car accident. The driver had been drinking
along with the other passengers in the car. None of the people in the car had been buckled. They hit
a tree, the front passenger door flew off the car and the girl in the passenger seat became badly
paralyzed. She had been a basketball player and now she can't even move her body. The girl in the
back seat had been her sister. She got flung many feet away from the car and died. It took the police
many days to recover her body and they said if she had been buckled she would still be alive today.
There's a quote by John Gvare that states,"Oh, I never wear my seatbelt, I don't believe in gravity."
You can obviously tell that he is being sarcastic. However, what he is saying is very true. Most
people who don't wear their seat belts risk their lives and the lives of the people who are in the car
with them if they don't wear their seatbelt. You're not just risking your life, but the other people in
the car with you as well. You should always be a good example to other people in the car by
buckling up, and if you don't want to and up like the driver in the accident, don't drink and drive
either. Obviously, not wearing your seatbelt can get you in trouble and even though this guy was
drunk, and he shouldn't have, if he

Application And Results Of Computers
Applications and Results
Computers uses collision detection to detect whether a shape is within the boundaries of another
shape. If the shape is within the boundaries of the other shape, a collision detection occurs. The
reason behind collision detection is to demonstrate the laws of Physics. For instance, since any
objects cannot phase each other, the computer must demonstrate that two objects must be separate
from each other and not within one another.
Sources: http://jsfiddle.net/gQ3hD/2/
Applying Circle Collision Detection
The following JavaScript code in figure 8 applies the Circle Collision algorithm and checks if the
two circles are intersecting [4]. If there is an intersection that is present, the green circle will change
colors.
Figure 8. The following is a JavaScript code that detects collisions between two circles.
In figure 8, the codes "var circle1" and "var circle2" defines the elements of the circle and what
color it represents before and after the collision. First, the variable "dx" and "dy" calculates the x–
axis and the y–axis of the two circles plus its corresponding radius. Next, the variable "distance"
uses the distance formula to get the distance between the two circle. Afterwards, it uses a conditional
statement to check for a collision if the distance is less than the combined radius of the two circles.
Thus, the circle is green in figure 8 as there is a collision. Figure 9 demonstrates a result if there is
no collision between the

Vibration Test of Composite Materials on the Basis of...
Vibration test of composite materials on the basis of measurement of dynamic properti
INTRODUCTION
On the basis of measurement of viscoelastic and dynamic properties, there are four important
parameter such as damping, relaxation, creep, and strain rate, which describes evidence of
viscoelastic behavior and can be calculated with the help of an experiment, but this paper describes
the method of test for the measurement of damping. In addition, the notation of complex modulus
describes conventionally for damping and dynamic stiffness of linear viscoelastic materials, where
the methods of vibration test are considered for measurement of complex moduli of composites.
With the help of this test of plates and beams to find dynamic elastic moduli also get evaluated.
In vibration test, notation for complex modulus is suitable for portrayal of dynamic behavior of
linear viscoelastic composites. The damping and stiffness which are the constituent part of the
complex modulus are belongs to the dynamic mechanical properties, which may be measured with
the help of experiments with vibration and wave propagation experiments ,and the measurement of
the same is considered for dynamic mechanical analysis.
However, there are many traps with respect to the different kind of techniques which must get
avoided. In example, there was a development of commercial dynamic mechanical analyzers for the
testing of small specimen of unreinforced low modulus polymers, and stiffness is generally

The Emergency Medical Care Services And Management Of Trauma
!
SCHOOL OF HEALTH SYSTEM STUDIES TATA INSTITUTE OF SOCIAL SCIENCES
MUMBAI 400088
Research Proposal
Submitted as Part of the Assignment of PHP 8
A CASE STUDY ON THE EMERGENCY MEDICAL CARE SERVICES AND MANAGEMENT
OF TRAUMA IN KASARAGOD DISTRICT IN VIEW OF DRAFT HEALTH POLICY 2013 OF
GOVERNMENT OF KERALA
Submitted by Dr Anupama T M2015PHHP001
The Faculty Concerned Dr Mathew George
A CASE STUDY ON THE EMERGENCY MEDICAL CARE SERVICES AND
MANAGEMENT OF TRAUMA IN KASARAGOD DISTRICT IN VIEW OF DRAFT HEALTH
POLICY 2013 OF GOVERNMENT OF KERALA
Introduction
Road Traffic Accidents (RTAs) are becoming an increasing cause of preventable death and
morbidity across the globe including in India. It is estimated that if preventable measures are not
taken ,it will be the fifth leading cause of death by 2030. Ninety percentage of the fatalities related
to RTAs occur in Lower and Middle Income Countries (LMIC) which has only around 48% o
world's vehicles. In India, almost 400,000 RTAs occur in an year resulting in approximately 85,000
deaths and 150,000 severe injuries. Overall,RTAs are predicted to be the third largest contributor of
global burden of disease by 2020.
The trend in the state of Kerala is no different (Fig 1). According to Report on Medical Certification
on Cause of Death 2008,GOI , 81.8% of deaths due to injuries (including injuries sustained in RTAs)
, poisoning and certain other consequences of external causes occur to individuals between the age
group of 15 to 64 years

Cardiff School Of Engineering : Coursework Cover Sheet
Cardiff School of Engineering Coursework Cover Sheet Personal Details First three letters of last
(family) name...............KHI.............. Personal Tutor: ...Robert Davies..................... Discipline:
ACE/EEE/MMM/FND (please circle) Module Details Module Name: ......Professional
Studies............. Module No: ......EN1914... Coursework Title: .....................CT Lab
Report........................................... Lecturer: ..............................Dr. Geoff
Evans........................................ Submission Deadline: ............Friday 25th of
November.................................. Declaration I hereby declare that, except where I have made clear
and full reference to the work of others, this submission, and all the material (e.g. text, pictures,
diagrams) contained in it, is my own work, has not previously been submitted for assessment, and I
have not knowingly allowed it to be copied by another student. In the case of group projects, the
contribution of group members has been appropriately quantified. I understand that deceiving, or
attempting to deceive, examiners by passing off the work of another as my own is plagiarism. I have
read the programme handbook and understand that plagiarising another 's work, or knowingly
allowing another student to plagiarise from my work, is against University Regulations and that
doing so will result in loss of marks and disciplinary proceedings. I understand and agree that the
University's plagiarism software 'Turnitin' may be used to check the originality of the submitted
coursework. Student ID number:

Effect Of Stress On The Rail Ballast
Ahlbeck et al. (as cited in Sun & Dhanasekar 2002)[4] point out that that stress distribution (stress
response) under concrete sleeper is Trapezoidal shape uniformly until the foundation as
demonstrated in Figure 2.1.1 and the stress distribution angle (internal friction angle) of the rail
ballast has effect on the stiffness the damping of the upper and the lower divisions of the rail ballast.
Based on this theory, Ahlbeck et al. initiated their model (Lumped mass model) which represents
only the vertical effect of the sleeper and the ballast as shown in Figure 2.1.2. This model cannot be
used in high–frequency vibration[5]. Also, Ahlbeck et al. (as cited in Sun & Dhanasekar 2002)[4]
find formulas for determining the stiffness value Kbl as well as the mass of the Trapezoidal part of
the rail ballast under a sleeper Mbl as: where θb is internal friction angle of the rail ballast (Ahlbeck
et al. recommended 20o), ρb is the rail ballast density, Eb is modulus of elasticity of the rail ballast
in N/m2,Bs, Ls, are width and length of the rail sleeper and Hb is the high of the rail ballast as
shown in Figure 2.1.1. Furthermore, Ahlbeck et al. (as cited in Sun & Dhanasekar 2002)[4]
determine the values of sub–ballast mass Msb, stiffness Ksb and subgrade stiffness Ksg as: where
θsb is internal friction angle of the sub–ballast (35o as suggested by Ahlbeck et al.), ρsb is the sub–
ballast density, Esb is modulus of elasticity of the sub–ballast in N/m2, Esg is modulus of elasticity

The Effect Of Temperature On A Squash Ball
When a ball bounces, the kinetic energy is transformed into elastic potential energy. However, the
transfer of energy is not exactly perfect, as some energy is lost through heat and sound. The
coefficient of restitution is a formula that takes the square root of the ratio of bounce height to drop
height. The result ranges from 0 to 1, where 1 equals a perfect elastic collision.
In this experiment, the effect of temperature on a squash ball was investigated. Various types of
squash balls were subject to different temperatures then dropped from a 2 metre height. A slow–
motion capture camera was used to record bounce heights, then the results were carefully analysed
and recorded into the data table. The results showed that as temperature ... Show more content on
Helpwriting.net ...
It takes the square root of the ratio of bounce height to drop height. The result ranges from 0 to 1,
where 1 indicates a perfect elastic collision.
The coefficient of the restitution is given by the formula: e=√(h_after/h_before ) where h is the
height of the ball
This formula can be used to calculate the coefficient of restitution for all types of balls.
Since it is understood that a warmer ball will bounce higher than a cooler one, then it can be
concluded that temperature affects the coefficient of restitution. This is because the gas molecules
inside the ball expand as temperature increases, causing an increase in the energy of the molecules
bouncing faster inside the ball (Sheehan, 2015). In other words, as temperature increases, so too will
air pressure. Temperature also influences the elasticity of the ball. In physics, elasticity (from the
Greek word, "ductible") is the ability of a body to resist a distorting influence or deforming force
and to return to its original size and shape when that influence or force is removed (Landau,
Lipshitz, 1970). The coefficient of restitution is a helpful formula that measures the elasticity of a
substance: the less energy lost to heat and sound, the higher the coefficient of restitution and the
more elastic the substance.
Rubber elasticity describes the mechanical behavior of many polymers. The polymers of a squash
ball are stretched upon impact for a short

The Macroscopic Material Behavior Of Concrete
The macroscopic material behavior of concrete is influenced by the geometry, spatial distribution
and material properties of individual material constituents and their mutual interactions. Therefore,
it is essential to study the influence of each material constituent in order to estimate the residual
strength of the structural components. Thus, failure of concrete is a complex phenomenon due to its
multiscale and multiphase nature. When the normal stress in a material reaches its tensile strength,
the inhomogeneities in concrete promote the formation of an inelastic zone ahead of an existing
crack termed as the fracture process zone (FPZ). The FPZ is dominated by various complicated
mechanisms such as crack shielding, crack deflection, aggregate bridging and microcracking around
the crack tip and exhibits a post–peak softening behavior under tensile loading. It therefore becomes
necessary to include these effects for predicting reasonably well the residual strength of existing
cracked and damaged structures.
Bridging of coarse aggregate occurs when the crack advances beyond an aggregate that continues to
transmit stress across the crack until it ruptures or is pulled out. The bridging aggregate may be
considered to exert a closing pressure on the crack surface thereby resisting the crack growth and its
magnitude strongly depends on the interfacial properties between coarse aggregate and cement
mortar. Upon loading of plain concrete beams under three–point bending, it is

Analysis : ' Blind ' By The Transport Accident Commission
A. Describe the various strategies used to communicate the message of both campaigns (include the
slogans, graphics, statistics, media used). (10 marks) 1½ page There has been numerous campaigns
to raise awareness and reduce accidents and fatalities, including 'Blind' by TAC (Transport Accident
Commission), 'Get Your Hand Off It' by NSW Centre for Road Safety,'Don't trust your tired self' by
NSW Centre for Road Safety and 'Stop Revive Survive' by NSW Centre for Road Safety which
identify and attempt to prevent Driver Distraction and Driver Fatigue. 'Blind' by the Transport
Accident Commission is a renown campaign established in 2013 which utilises a short but effective
45 second commercial and website to clearly illustrate the ... Show more content on Helpwriting.net
...
However, as soon as he raises his head, there are three cyclists in front of his vehicle, he swerves
right instantly, dodging the cyclists narrowly and the camera pans to his strained face. His phone
later sounds with a notification (another common modern distraction for many drivers) and he
instinctively peeks at the device. The screen turns black again and a grave sounding voice–over
narrates that if the driver is distracted for simply two seconds at 50 kilometres per hour, they'll travel
27 metres blind. When the driver shifts his focus to the road again, there is a schoolgirl alighting
from a school bus and there is insufficient time to brake, the car skids forward, the driver hits the
child as she screams and he stares in shock. It ends with the slogan 'distraction leads to disaster' to
reinforce the idea that an interference with a driver's attention or line of sight will result in
consequences such as car crashes or injury. the TAC icon and State Government Victoria icon also
appear on the black and white screen as sponsors. The website states that 'the average person's
reaction time to an event is 1.8 seconds' which directly impacts the severity of their injury and
possibility of an accident. It takes approximately four seconds before a distracted driver can react.
There is a clear table to display the distance travelled by a driver at varied speeds of 2 seconds. The
lowest speed identified in the table being 40 kilometres per hour

Fishing Rod Composites Microstructure Examination
Name: Ng szeming
Date: 9/3/16
Subject: MSE320_lab_1 Fishing rod composites microstructure examination
Abstract:
In this experiment the main objective was going to look at the microstructure of the composites from
the fishing rod with in angle, transverse and longitudinal. By using the microscope and within
different scale to see the fiber and the epoxy. And will find out in different cut the effect to the
volume fraction, and to prove why transverse cut is the only option for the calculation
Introduction
Composites, is a material that made with two or more different material. People can see or use it
anytime, anywhere. Composite materials can provide different advantages from mixing different
materials, and usually combined metal (aluminum), polymers (epoxy) or ceramic (silicon). One of
the most common example for the composites will be fishing rod. Nowadays fishing rod usually
make with glass fiber/ carbon fiber and epoxy. Which glass fiber or carbon fiber are brittle but
strong, and epoxy can provide a high mechanical properties. Result of the fishing rod can be have a
better toughness, and lightweight. Because of that in this lab, the main objective is going to use the
optical microscopy and find out the fiber's alignment, the structure pattern and the mechanical
properties from the fishing rod.
Experiment:
In this lab, we were required to test multiple samples of the fishing rod, which they were already
polished. First we have to set up the computer

When A Car Moving North How Fast It's Moving Would Be Its...
The important thing is to never stop questioning. In science you must question everything and work
to find the answer.The definition of the speed of something in a given direction. So when a car is
moving north how fast it's moving would be its velocity. When the mass of an object is changed it
can change the velocity. Mass is the amount an object weighs.In this experiment I took the mass of
carts and changed them to observe their change in velocity.s. The law of conservation of momentum
requires that the total momentum in the system must remain the same, or be conserved, even though
mass or velocities of moving objects in a system may change. If the total mass of two colliding carts
is increased, then the final velocity of the carts decrease? ... Show more content on Helpwriting.net
...
Both carts can have the same mass and same velocity, but after the collision will have a slower
velocity. Even after the collision the carts will have a velocity but their directions will have changed.
When the carts change direction the velocities will change and the cart with the least amount of
mass will have the greatest velocity. If one cart is moving faster in the beginning the one with the
least amount of velocity will go backwards faster. Clearly, the velocity and mass of the cart affects
the

Negative Impacts and Harm of Drinking Alcohol Essay
As we all know, alcohol is a product that has provided a variety of functions for people in the world.
Alcoholic beverages have been consumed by humans in the very early time, they were one of the
most popular drink and have been widely used in everywhere of the world. Also they were used
medicinally, chemically, physically and so on. The alcohol plays an important role in enhancing the
enjoyment and quality of life, for instance, they could create the human relations easily, can
facilitate relaxation, can benefit your health if drink in moderation, and increase the pleasure of
eating. However, even though the alcohol had benefit people in many ways, but did you know the
negative impacts and harms that excessive drinking alcohol could ... Show more content on
Helpwriting.net ...
Also for many people, alcohol provides a wonderful function, people drink alcohol to temporarily
relieve stress.(Lin, 2013)." "Alcohol related crashes kills someone in the U.S. every 22 minutes. At
any minute, one of 50 drivers on the road is drunk and every weekend night, one out of 10 is drunk.
(Kypri, 1994)." This quote means In United State, every 22 minutes there was a person killed by car
accident involving alcohol. One of 50 drivers on the road was drunk at any minute; one of 10 is
drunk in weekend night. The quote shows the number of traffic fatalities annually related to alcohol,
do you realized what does those numbers truly represented? Those are the examples of drunk drive
that got people killed in the life. "Underage drinking is a leading contributor to death from injuries,
which are the main cause of death for people under age 21. Annually, about 5,000 people under age
21 die from alcohol–related injuries involving underage drinking.( Centers for Disease Control and
Prevention, 2013)." This quote means underage drinking alcohol is the major cause of death and
injuries for teenager who is under age 21. There were about 5,000 people under age 21 died in the
accident that associated with alcohol every year. In the quote, it shows the disadvantage of underage
drinking, which could cause the death and injuries of

Rate Of Car Collision
Abstract
As drivers age, their risk of being involved in a car collision decreases. The present study
investigated if this trend is due, in part, to some risky drivers having a collision early in their driving
lives and subsequently reducing their risky driving after that negative experience. Accelerometers
and video cameras were installed in the vehicles of 16– to 17–year–old drivers (N= 254), allowing
coders to measure the number of g–force events (i.e., events in which a threshold acceleration level
was exceeded) per 1,000 miles and the number of collisions. Among the 41 participants who
experienced a severe collision, the rate of g–force events dropped significantly in the 1st month after
the collision, remained unchanged for the 2nd month, ... Show more content on Helpwriting.net ...
Groups aging from sixteen to seventeen (adolescence) tend to adventure in the area of alcohol and
drugs. Which in fact can impair judgement and decrease reflexes of motor skills. Consideration in
the decreasing of risk for accidents may increase substance abuse which could result in a severe
accident. Adolescences is a phase where a individual goes through confusion and discovery of one's
self. Many challenges come about that could change peer pressure to be cause teens to show
impression to want to drive fast. Ways to find the true rate of the collisions in future on could create
more categorical sub groups and increase the sample

Is the Coefficient of Restitution Constant for All...
Introduction
When an object collides with another, momentum is conserved, but kinetic energy is not.
This experiment was designed to find if the coefficient of restitution, e, changes for high–velocity
collisions. At low velocities colliding objects will tend to maintain their shape, size and elasticity, so
e is likely to be constant over a range. However, at high velocities colliding objects may change
their physical properties and therefore a change (probably a reduction) in e may be observed.
A small reduction in e was observed, but this was probably accounted for by air resistance and not a
change in the material.
Theory
When a collision occurs, total momentum is conserved, but kinetic energy is not. When a ball, for
example, ... Show more content on Helpwriting.net ...
It is more likely that air resistance accounts for the observation.
The experiment could be improved by increasing the drop height past 3 metres (this may increase
the effect that was sought), having multiple cameras (to save time in adjusting height) and including
air resistance in the theory.
––––––––––––––––––––––– building tube
putty
building
tube
putty
building
tube
putty
H

h
[pic]
[pic]
Ball
Camera

Egg Drop
Running head: Egg Drop Lab Report
Egg Drop Lab Report
Jon Johnson
Rochester Area High School
Egg Drop Lab Report
Introduction The objective of this project was to create a structure that will protect a raw egg and
prevent it from breaking when being dropped from a minimum height of two meters. A decent
hypothesis or prediction one could develop before any experimental trials would be as follows. The
structure that provides the longest duration of impact between the falling egg the ground will
provide the desired results of an undamaged egg. The duration of time in which the ground applies a
force to the egg carrying structure is referred to as impulse. The longer the span of impact time, the
more mild the force acting upon ... Show more content on Helpwriting.net ...
All the failing designs possessed at least one of the mentioned flaws.
Conclusion
After viewing the trials of drops, multiple flaws were highlighted in many designs of the lab
participants. One flaw that could have been improved on was more even distribution of straws
surrounding the egg compartment, rather than overbuilding on one side. This could be solved by
building symmetrically. Another noticeable flaw was the reckless flight patterns of designs

Projectile Energy And Momentum Lab Report
Analysis and Results:
In the previous experiment, the range of a projectile shot at an angle was predicted by calculating
the launch speed along the horizontal. Building on this idea, this experiment sought to predict the
range of a projectile along the horizontal by determining the initial velocity at which the ball was
being launched using a ballistic pendulum. The concepts of conservation of energy and momentum
were used to calculate the initial velocity.
In the first part of this experiment, the velocity at which the ball was launched had to be determined.
A ball of mass m was launched from a projectile launcher set at short, medium, or long range
strength. The ball was launched five times at every setting. When the ball came out of the ... Show
more content on Helpwriting.net ...
A table was used to represent the data because there were, but very important data points to observe.
No statistical tests were conducted.
Conclusions:
In order to assess the accuracy of the predicted medium range, a circle using the mouth of Solo cup
was drawn on the carbon paper. Only Trial 3, as seen in Table 1, landed within this circle. The first
two trials were very close to landing within said circle, but were slightly off. There could have been
a few sources of errors. One very easy mistake was poor positioning of both the circle on the carbon
paper, and the carbon paper on the floor. Along those same lines, poor angle alignment between the
projectile launcher and the carbon paper resulted in slight deviations from the circle. Furthermore,
the projectile launcher was not clamped down, and could have been moved ever so slightly to affect
the trajectory of the ball. Another source of error could be attributed to slight errors in
measurements. Meter sticks are a strong and reliable measuring tool, but has serious limitations
when the surfaces are not all even. Human error could have also affected the results, as bad
judgment in linear alignment could have resulted in less accurate results. Overall, the average
observed range was an acceptable

Essay about Personal Narrative
Personal Narrative – Contemplating Death
"Then, just like that, she was gone. I couldn't hold back the tears, and I don't think my sunglasses
hid them well. I've gotten used to my emotions and I only let it all out when they can't be stifled, so
you know this wasn't a sigh–I'm–gonna–miss–her moment. The sunshine and warm breeze of Friday
afternoon was frustrating; dreary, cold, typical–March days are fitting, appropriate for feeling this
way, and how nice it was outside was a slap in the face. I later recalled how just a year prior I
reversed the phrase A sunny day is no match for a cloudy disposition on a day like this one. I
thought I was okay with everything, so what was it that hurt me? She left so easily; she never thinks
about ... Show more content on Helpwriting.net ...
Just three days prior I encountered the similar misfortune of a driver unaware of the surrounding
traffic. The rain had been steadily downpouring by the time I had reached the Expressway on my
way home from Philadelphia: although it wasn't the kind of rain that eliminates visibility, it had
caused two cars to collide already. The police car's lights attracted the center and right lanes to slow
in an attempt to see what had happened, but the lights also contributed to the sea of headlights and
streetlights refracting through the rain, debilitating any driver's vision. Driving in the center lane,
both the car in front of me and I slowed almost to a stop because of the drivers ahead: unfortunately
the left lane's traffic prevented me from passing this car, which I then remained behind as she
changed to the left lane. Continuing for about one hundred yards, she suddenly stopped, and,
abandoning my practice of pumping the brakes in the rain, I slammed on them in an attempt to miss
the small sedan, causing my car to fishtail, skid, then collide with the center barrier, killing me
instantly. My three passengers were quite alarmed by this, and I apologized several times over the
duration of the ride, noting each time I gradually slowed instead of stopping

Persuasive Essay On Teenage Driving
Driving down the highway, heading to the movies with three of your best friends in the car singing
along to your favorite song; what better way to spend a Friday night. The car in front of you slams
on their breaks; but you didn't notice, you were looking over at your friend, singing and laughing.
Suddenly, the lives of four teenagers hang in the balance, dependent on the skill and reaction time of
one inexperienced teen driver. This scenario is far too common when reviewing the safety of
teenage drivers. Currently, Florida is one of five states in the country that has no restriction on the
number of teenage passengers in a car driven by a teenage driver ("Teenagers"). As adults, parents,
and members of our community, we need to band together and encourage Florida lawmakers to
impose restrictions on the number of passengers under the age of 20 in vehicles driven by teenage
drivers. By doing so we not only protect the safety of our children but also innocent passengers and
fellow motorists. Fourteen states, including Georgia, Indiana, West Virginia, and California prohibit
any passengers under the age of twenty for the first six months of driving and lessen the restriction,
allowing one passenger under the age of twenty after that ("Teenagers"). Statistics on teenage
driving accidents and deaths are alarming. According to 2012 statistics released by the National
Center for Health Statistics, 60% of passenger vehicle deaths were teens ages 13–19, 54% of the
deaths of teenage

Physics, Energy
Romar M. Cabinta
EXERCISES 15
WORK, ENERGY, AND POWER
A. CONCEPTUAL QUESTIONS
1. Is work done when you move a book from the top of the desk to the floor? Why?
Yes. It is because the displacement of the book from the top of the desk to the floor and the force
that is applied to the book is parallel with one another.
2. State the law of Conservation of Mechanical Energy in two ways?
The law of conservation of energy states that energy may neither be created nor destroyed.
Therefore the sum of all the energies in the system is a constant.
TMEinitial=TMEfinal
3. Explain the basic ideas that govern the design and operation of a roller coaster.
A roller coaster is operated and designed through the ... Show more content on Helpwriting.net ...
A tandem (two–person) bicycle team must overcome a force of 34 lbs. to maintain a speed of 30
ft./s. Find the power required per rider, assuming they contribute equally. Express your answer in
horsepower.
F=34 lb
F1=17 lb=F2
P1=F1v=17 lb30fts=510 ftlbs×1hp550 ftlbs=0.93 hp
P2=F1v=17 lb30fts=510 ftlbs×1hp550 ftlbs=0.93 hp
5. A pump is required to lift 200 L of water per minute from a well 10 m deep and eject it with a
speed of 20m/s. (a) How much work is done per minute in lifting the water? (b) How much in giving
its kinetic energy? What horsepower engine is needed if it is 80% efficient?
a.) W=mgh+12mv2=200kg×10m×9.81kgm2+12×200kg×20ms2=59620Js=993.67J/min

b.) W=12mv2=12200kg20ms2=40000 J
c.) HP=59620js÷0.8×746js=99.899 hp
EXERCISES 16
LINEAR MOMENTUM
A. CONCEPTUAL QUESTIONS
1. Which has greater momentum, a ten wheeler truck at rest or a moving motorcycle? Why?
A moving motorcycle has a greater momentum than the truck. A truck at rest has zero momentum
because an object has to be moving in order to have a momentum.
2. How does impulse differ from force?
Impulse is the product of force and the time interval of the application of force; while force is just a
factor that affects an object's impulse when it is at motion.
3. Why is it incorrect to

AM 317 Experiment 1 Essay
AM 317
MECHANICS LAB
EXPERIMENT 1
BEAM DEFLECTIONS
TEST PERFORMED: FEBRUARY 4, 2015
REPORT SUBMITTED: FEBRUARY 11, 2015
BY
HAGOP MERTEKHANIAN
Student I.D # 105200288
Wednesday 7:00 pm
GROUP 1
ABSTRACT
Deflections of a beam are important to be able predict the amount of deflection for a given loading
situation. This experiment addresses determining the yield point for a material to fail, so the stress in
the material does not have to reach to that point. This is where understanding beam deflection
becomes a useful tool. This experiment is using beam deflection theory to evaluate and compare
observed deflection per load values to theoretical values. Beam deflection experiment done by four
parts. Part 1 –Simple Supported Bean, part ... Show more content on Helpwriting.net ...
(LB)
I–moment of inertia (IN4)
E– The modulus of elasticity.(Psi)
Ymax–amount of the deflection due to applied load (IN).
L–length of the beam.(IN) a– distance from beginning of the beam to the reference point (IN)
P–single applied concentrated load.(LB)
I–moment of inertia (IN4)
E– The modulus of elasticity.(Psi)
Ymax–amount of the deflection due to applied load (IN).
Test Procedures
Part 1– Simple Supported Beam
1. Calibrate the micrometer.
2. Measure the dimensions and record them.
3. Calculate area moment of inertia (I) using the equation–4
4. Calculate maximum permissible loads for mid–span using equation–3,where maximum stress =

18,000 psi
5. Calculate maximum permissible loads for quarter–span using equation–3, where maximum stress

The Death Of A Car
One to five years in prison. That is the sentence for a person convicted of involuntary vehicular
manslaughter in result of death. Intentional or not, many ordinary people land themselves in prison
for one foolish mistake. One glance at a text, one drink too many, or one decision to not put on a
seatbelt can turn a person 's life upside down. Many times, especially in a college atmosphere, teens
make poor and naive decisions when faced with driving a car. One mistake can lead to life–altering
consequences for the rest of a teen's life. Injuries in automobile accidents are becoming so prevalent
today, and changes need to be made in order to protect the lives of teens and the cars surrounding
them. Teens choose to not wear a seatbelt, drink a few before driving, and text behind the wheel. All
of these must be addressed and change must be made through public health intervention to establish
a safe road where everyone can drive.
According to the 2011 South Dakota Motor Vehicle Crash Study, there were 17,362 motor vehicle
accidents and 5,485 of these crashes resulted in an injury or death in 2011. In South Dakota, the
fatality rate of car accidents compared to national average is slightly above, at 1.2%. The national
average is 1.1 % (Department of Public Health). This shows that there is a high risk of injury when
operating a motor vehicle in the state of South Dakota. This study assesses the causes of many
accidents in South Dakota and the prevalence of injury and death in

Consequences Of Texting And Driving
Wouldn't you agree that texting and driving is a big issue nowadays? Many drivers are so caught up
in their phones that they risk their lives and the lives of others just so that they could answer a
simple text message. Now that this problem is becoming so big, it should have severe consequences.
People who text and drive should get license suspension for six months and get $500 for the first
violation and $1000 for the second violation. People who text and drive can hit or even kill
pedestrians because of being distracted by their phones and not paying attention to the road. In the
course of five years, the national number of pedestrians who were killed or hit by distracted drivers
increased from 344 to 500 people. If you think about it, many of those people who died could have
been young children or elderly people who didn't have a fault, but because of someone being so
inconsiderate using their phone, they killed these people. In 2015, 5,376 pedestrians were killed
because of drivers who were too busy texting. All those pedestrians who were killed did not think
that because of walking somewhere they would be killed by someone so distracted who didn't have
the capacity to make sure that the road was clear for them to keep driving. If this problem had
further consequences, then many of the people who died wouldn't be dead right now. Most of the
drivers who end up killing someone or getting killed by someone on their phone are usually teens.
Eleven teens die every day as

How Does The Concentration Affect The Rate Of Reaction
How does the concentration affect the rate of a reaction?
30/1/2012
By Alex Whenman
Contents page
1. Introduction to my investigation
2. Background information on concentration
3. What experiment I will be conducting
4. Equipment I will be using
5. How I will be conducting the experiment
6. Heath and safety risk assessment
7. What I think will happen
8. How I will set up my experiment
9. Why I'm having my experiment set out like this
How does the concentration affect the rate of a reaction?
In this investigation I will be investigating to see whether the concentration ... Show more content
on Helpwriting.net ...
When performing my experiment I will come across various health and safety issues. One of them
would be spilling acid on my hand. To prevent this I will be using syringes to measure out the
correct amount of HCL. This will prevent any spillage of HCL. Also another heath and safety risk
would be having Na2S2O3 get into any open cuts I have. To prevent this I will cover all open cuts I
have. Moreover there is a chance that when reacting HCL with Na2S2O3 the gases produced could
get in my eye and cause my eye to become irritant. So to prevent this I will wear safety goggles so
the gases produces can not get into me eyes.
When I conduct my experiment I think that as the concentration of HCL increases. The time taken
for the HCL to react with Na2S2O3 will increase. I think this will happen because of the collision
theory (1) 'the more collisions in a system, the more likely combinations of molecules will happen.'
This helps understand that if we increase the concentration of HCL then the more likely there will be
combination of molecules hitting each other at a faster rate meaning that if there are more collisions
of molecules this would speed up a reaction by every molar the HCL goes up by.

I will be

Elastic Collisions In A Cue Ball

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