Elastic Collisions In A Cue Ball

1. 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 on Helpwriting.net ... 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 ... Get more on HelpWriting.net ...

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3. 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, ¬ß624.155(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. ¬ß624.155(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 ... Get more on HelpWriting.net ...

5. 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, ... Get more on HelpWriting.net ...

7. 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). ... Get more on HelpWriting.net ...

9. 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 ... Get more on HelpWriting.net ...

11. 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

12. 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 ... Get more on HelpWriting.net ...

14. 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 ... Get more on HelpWriting.net ...

16. 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 ... Get more on HelpWriting.net ...

18. 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 ... Get more on HelpWriting.net ...

20. 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 ... Get more on HelpWriting.net ...

22. 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 km¬≤. 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 ... Get more on HelpWriting.net ...

24. 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 ... Get more on HelpWriting.net ...

26. 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 ‚àÜp=„Äñmv„Äó_final – „Äñmv„Äó_initial ‚àÜp=(0.11337)(–0.186)–(0.11337)(0.86) ‚àÜp=–0.119 kg*m/s Calculation 3.4: Impulse Calculation from Figure 3.4a found below: I=F_max*‚àÜt 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

27. system.3 This additional force explains why the percent in the change of momentum from start to finish is 28.7 ... Get more on HelpWriting.net ...

29. 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 ... Get more on HelpWriting.net ...

31. 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‚Üì= I/T‚Üë). 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 ... Get more on HelpWriting.net ...

33. 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 ... Get more on HelpWriting.net ...

35. 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 ... Get more on HelpWriting.net ...

37. 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 ... Get more on HelpWriting.net ...

39. 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 ... Get more on HelpWriting.net ...

41. The Emergency Medical Care Services And Management Of Trauma ÔøºÔøº! 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 ÔøºA 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 ... Get more on HelpWriting.net ...

43. 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: ... Get more on HelpWriting.net ...

45. 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 Œ∏b is internal friction angle of the rail ballast (Ahlbeck et al. recommended 20o), œÅb 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 Œ∏sb is internal friction angle of the sub–ballast (35o as suggested by Ahlbeck et al.), œÅsb is the sub–ballast density, Esb is modulus of elasticity of the sub–ballast in N/m2, Esg is modulus of elasticity ... Get more on HelpWriting.net ...

47. 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=‚àö(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 ... Get more on HelpWriting.net ...

49. 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 ... Get more on HelpWriting.net ...

51. 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) 1¬Ω 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 ... Get more on HelpWriting.net ...

53. 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 ... Get more on HelpWriting.net ...

55. 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 ... Get more on HelpWriting.net ...

57. 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 ... Get more on HelpWriting.net ...

59. 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 ... Get more on HelpWriting.net ...

61. 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

62. h [pic] [pic] Ball Camera ... Get more on HelpWriting.net ...

64. 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 ... Get more on HelpWriting.net ...

66. 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 ... Get more on HelpWriting.net ...

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