Physics in Volleyball Essay examples -- physics sport sports volleybal

Physics is used in almost everything we do throughout our everyday lives. Sports are almost entirely composed of the physics of the human body in order accomplish the performed action. Volleyball is a sport which has physics at the heart of the game, understanding the physics of the game actually allows a player to improve and become more efficient and effective in his or her game. This essay gives insight into how the rules of physics can be used and are essential in the game of volleyball in all aspects of the game including serving, passing, setting, hitting, and blocking. Volleyball is a game of constant projectile motion with various types of contacts involved in each aspect of the game. In volleyball when serving one must stand behind the end line, which is 30 feet from the net. The net measures 90 inches, or 96 inches for men, from the ground. The goal is to get the ball across the net with as little time as possible so that the other team has less time to react and handle the ball. Traditionally serving has been done from the floor where the server has to create a parabolic motion path for the ball to travel so that it will clear the net and then land within the boundaries of the court. In modern volleyball the game has progressed to more of a vertical game, with jump serving. The advantages that jump serving gives have to do with the physics of projectile motion. The angle in which the server’s initial velocity has to start from is smaller, because as the height increases the slope of the parabola in the motion of the ball decreases. As the height of contact increases the path that the ball follows becomes line like as it crosses the net and if the contact height is high enough and the ball is contacted correctly... ...ember 2004 Zobel, Edward A. "Projectile Motion, General Solution" 2001. 23 November 2004. . Western Washington University."Projectile Motion" .22Novemeber 2004 Bixby, Sarah.University of Alaska Southeast."The Physics of Volleyball" 2004. 23 November 2004 Anon. Science 306(5693) 42-42. "Engineering of Sport- In Volleyball, Crafty Players Serve Up an Aerodynamic crisis. 2004. 23 November 2004.

Juliets Diary :: Papers

Juliet's Diary Sunday Today has been both amazing and terrible. Amazing because I have fallen in love with a wonderful, handsome man yet terrible as he is a Montague, my one enemy. Mother and father also wish me to marry Paris, one of father friends. Dancing with him tonight he seemed to be very charming. I am sure he is a lovely gentleman but I do not wish to marry him. I have met a man who I do wish to marry, Romeo. He is handsome and kind. We engaged in vows of love. He also wishes to marry me. He is very romantic he said to me "My lips, two blushing pilgrims, ready stand to smooth that rough touch with a tender kiss." I could not help but fall for him. I met him tonight at my father's party. Even our meeting was romantic our eyes met across the crowed party, he's extremely attractive he made me feel like no man had ever made me feel before. I've always believed in love at first sight, I'm so happy that it's happened to me. Unfortunately our meeting at the party was cut short. This is when I discovered my love was my enemy nurse told me "His name is Romeo, and a Montague; the only son of your great enemy". What does a name matter when you are in love? I would happily give up my name and be married to him. My only love sprung from my only hate! Earlier Romeo snuck into the garden and we met again. He risked getting caught for me so I know he loves me as much as I love him. He asked me to marry him just as I was about to leave. He said "The exchange of thy love's faithful vow for mine." It wasn't the most romantic way to be asked to marry someone but I couldn't refuse It's I wanted. I'm worried about how my fathers going to react to my news. We will have to get married in secret father would never let me marry

Explaining the Goal of Financial Management and the Role of Ethics Essay

It has always been the goal of the financial managers to maximize the wealth of the shareholders of the firm. That is to say, we maximize the potential benefits that the firm’s stakeholders get by increasing the value of the firm in which these shareholders have taken the risk of investing to. According to Ingram (1992), the worth of a company is dependent on the capacity of the assets to produce cash flows over a period of time. This means that if the firm is able to generate a positive net cash flow including a reasonable dividend to its owners, then it said that value is created. Firms face two kinds of profits. They are accounting profits and economic profits. Maximizing accounting profits normally refers to the general corporate goal of maximizing profits as maximizing economic profits generally refers to maximizing the shareholder’s wealth. Ingram (1992) has distinguished them by defining accounting profits as the income accumulated after the overall cost is deducted from the overall revenue before the payment to shareholders is considered and economic profits as the income accumulated after compensating for the factors of production such as capital, labor and others. Moreover, she differentiated the two by saying that accounting profit does not consider all the factors of production as economic profit does and that it also does not consider compensating the shareholders for taking the risk in investing in the firm. Maximizing wealth does not consequently mean that the firm has to face an unethical decision making. It is still up to the firm as to how it will perform this task. As according to Goizueta (1997), everyone in the company would be better of if it plans for a long-term goal rather than a short-term goal. Through this, the firm can still plan on how it will maximize the wealth and at the same time be consistent with ethical standards.

Argument Against Video Games

English 102 12 March, 2013 Argue in support of or against the statement that video games have â€Å"a redeeming social value. † Do violent video games have â€Å"a redeeming social value? † You could get many different answers to this question depending on who you ask. Is there any good that can come from video games? What harm can come to people and society from video games? Is modern culture being affected either negatively or positively by today’s video games and those that play them?Are young, impressionable, people affected by playing video games for hours and hours during their impressionable, developmental years? These are a few of the questions I will attempt to answer as I argue that video games are playing a big role in the downfall of modern society. It is now the law of the United States that video games are art. †It is now the law of the United States that video games are a creative, intellectual, emotional form of expression and engagement, as fundamentally human as any other† (Schiesel, NY Times, 2011, p. 1). Like the protected books, plays and movies that preceded them, video games communicate ideas – and even social messages – through many familiar literary devices (such as characters, dialogue, plot, and music) and through features distinctive to the medium (such as the player’s interaction with the virtual world),† Justice Antonin Scalia wrote for the Supreme Court, in a case that arose from a California effort to ban the sale of violent video games to minors. â€Å"That suffices to confer First Amendment protection† (Schiesel, NY Times, 2011, p. 2). And now video games – as vulgar, crude, disgusting and thoroughly unredeeming as they often may be – have finally been fully recognized as a worthy element of our culture† (Schiesel, NY Times, 2011, p. 1). â€Å"There is statistically significant evidence from the studies within the fields of psychology and so ciology to indicate that violent video games have a negative impact on a child’s behavioral development as he or she matures into adulthood. These studies approach the issue from a variety of perspectives, some analyzing the effects of video game usage on academic achievement and others that focus on usage’s effects on violent tendencies.Regardless of how these effects are measured, evidence is accumulating in favor of the position that they are not good for childhood development. Short of recommending alternatives or ways of preventing the kind of excessive video game use targeted in these studies as adverse, what is conclusively known is the prevalence and results of violent video games. Nevertheless, there are valid objections and concerns about these conclusions that shall be addressed in turn; none of these counterarguments or critiques of the research literature hold much weight.The arguments from scientific findings can be supplemented with academic philosophy, specifically in the area of ethical philosophy where some argue a non-distinction in moral terms between killing an imaginary character and killing an actual person. From this broad base of studies and research into the effects of violent video games on maturing children, it is conclusive that the negative effects of violent video game usage far outweigh any alleged positive effects† (Meyer, Yahoo! Voices, 2011, p. 1).Modern culture is being affected negatively by today’s violent video games and those that play them. The people that have played these games and then gone out to commit violent acts have affected society in a very negative way. The impressionable, mentally disturbed, people that cannot distinguish between killing an imaginary character and killing an actual person have committed terrible acts of violence more often in recent years. When these young people are in their maturing years their minds are conditioned in a very negative way by playing violent vide o games.One cannot help but think that these people may not have done these violent things if they had never played the violent video games. â€Å"Whether you play video games on a portable unit, a television or the internet, excessive gaming can affect your personal and profession life. Video game addiction can be as problematic as gambling and affects players as young as eight years old, notes Kevin Baker, director of Smith and Jones Addiction Consultants, in an article for Brigham Young University’s NewsNet. Be aware of the effects of a video game compulsion to keep the hobby in check† (Drea, Livestrong. com, 2013. p. 1).If you spend all of your free time playing video games and skip meals or lose sleep because of your excessive game play, a video game addiction can negatively impact your health. â€Å"The Mayo Clinic notes that children who spend more than two hours a day in front of a television or video games in lieu of participating in physical activity may suf fer from childhood obesity. In addition, the University of Texas at Dallas notes that the addiction can lead to such medical issues as backaches, headaches, eyestrain and carpal tunnel syndrome – pain and numbness that you may feel in your wrist, hands, shoulders and elbows† (Drea, Livestrong. om, 2013. p. 1). Relationships with friends and family members may suffer if you’re spending more time gaming than you are talking to or going out with loved ones. â€Å"The On-Line Gamers Anonymous website notes that gaming may be negatively affecting your life if you only want to talk about video games, lie to cover up the amount of time you spend playing, forgo intimacy with your spouse in lieu of gaming or argue with loved ones over your excessive gaming† (Drea, Livestrong. com, 2013. p. 1).Video games that feature violent actions and scenarios may lead addicted players to be desensitized to the violence. â€Å"Richard Gallagher, director of the NYU Child Study Center’s Parenting Institute, states that players who become engrossed in first-person shooter-style video games, for example, may adopt a detached view of society or develop aggressive thoughts and tendencies† (Drea, Livestrong. com, 2013. p. 1). There are a few positive video games. Educational video games and video games that help to keep the mind or memory sharp are certainly excellent tools.Using video games as flight simulators for our pilots and soldiers are also very helpful and educational. The people that use educational video games are not the people that are going out and shooting up schools full of little children. There is no way that a young person, whose brain is still developing, can become a better member of society by playing violent video games for hours and hours every day. The negatives far outweigh the positives when these violent video games are played. The impressionable young people are fooled into thinking that these video games are, in some w ay, real life.The weak minded, young, impressionable, people that play these games can be very easily conditioned to become more violent members of society. No one ever played an educational video game and then went out and shot up a school. There have been people that played violent video games in excess and went out and did just that afterward. Nothing good can come from playing violent video games for hours and hours every day. Violent video games are a big part of the downfall of modern society. Violent video games have no redeeming social value.

Psychologists & prejudice Essay

According to Dollards et al (1939) frustration-aggression hypothesis aggression that cannot be expressed directly at the source of frustration can be displaced unto a ‘representation’ of the source (scapegoat), leading to bias and prejudice. Unlike the previous cases which have their origins in social learning or social identity this form of prejudice is borne out of the frictional component of social interaction. A ‘solution’ is therefore to reduce this friction as much as possible. The apartheid era in South Africa did recognise the problem of ‘cultural friction’ and sought to address it by separating black from white. However, the separation was not fair favouring white (supremacy) over black. This in effect only amounted to replacing one source of friction and frustration with another. Typically, social frustrations are linked to exogenous economic conditions where the contrast between the rich and poor is clearly sharpened. The challenge for any government to implement a solution to such frustrations may be simply be too difficult, or not at all practical. Germany in the late 1930’s and early forties provides a good example of national frustration followed by an explosion of national prejudice and aggression. The application of the ‘solution’ shaped the history of the 20th century. By understanding the origin and causes of prejudice, psychologists are able to propose methods and conditions that can lead to a reduction of prejudice. However, economic factors, social learning, and identity beliefs based on religion or culture may mean that any attempt to remove prejudice from ‘free’ society will be met with limited success.

Minimally Processed Fruits and Vegetables

Minimal processing is defined to include all unit operations such as washing, sorting, trimming, puling, slicing, coring etc. The purpose of minimal processing is to deliver to the consumer a like fresh with an extended self life whilst ensuring food safety and maintaining sound nutritional and sensory quality i. e. at least 7 days domestic consumption and 7-15 days for overseas consumption. Minimally processed products are also called fresh cuts, semi-processed, ready cut and fresh processed.This increasing popularity of minimally processed fruits and vegetables has been attributed to the health benefits associated with fresh produce, combining with the opening consumer trend towards eating out and consuming ready to eat foods. The minimally processing industries was initially developed to supply hotels, restaurants, catering services and other institutions more recently it was expanded to include foods retailers for home consumption. Most popular in USA. In 1998 the sale volume is near about $ 6 billion.Consumer trends are changing and high quality foods with fresh like attribute are demanded. Consequently less extreme treatment and for additives are being required. Within a wider and modern concept of minimal processing some food characteristics are identified that must be attained in response to consumer demands. These are less heat and chilled damaged, fresh appearance and less acid, solt, sugar and fat. To satisfy this demands some changes or reduction in the traditionally used preservation techniques must be achieved.For this reason we are concerned to talk about this topic. ? SOME MINIMALLY PROCESSED PRODUCTS [pic] [pic] [pic] [pic] [pic] [pic] [pic] [pic] [pic] [pic] [pic] [pic] ? PYSIOLOGICAL RESPONSES Minimally processed fruits and vegetables are more perishable than fresh as a consequence of tissue damage resulting from processing operation.Wounding, in fact, leads to an increase in respiration activity and ethylene production rate, alters metabolic activity, reduces shelf-life, increases the rate of nutritional and sensory attributes breakdown and leads to browning of tissues. The greater the degree of processing, the wounding response. Mechanical damages, in addition may enhance susceptibility to decay and contamination by spoilage micro-organisms and microbes pathogenic to consumers. The impact of bruising and wounding can be reduced by cooling the product before processing.Strict temperature control after processing is also critical in reducing wound induced metabolic activity. Other techniques that substantially reduce damage include use of sharp knives, maintenance, of stringent sanitary conditions and efficient washing and drying of cut surface. ? MICROBIAL RESPONSES The increasing demand of these minimally processed products represents for a challenge for researches and processors to make them stable and safe. The increased time and distance between processing and consumption may contribute to higher risks of food born e illnesses.Although chemical and physical hazards specific to minimally processed and ready-to-eat fruits and vegetables beside mainly with microbial contaminants. Some of the microbial pathogens associated with fresh produced include Listeria monocytogenes, Salmonella sp. , enteropathogenic strains of Escherichia coli, hepatitis A virus, etc. Intact fruits and vegetables are safe to eat partly because the surface of peel is an effective physical and chemical barrier to most organisms. In addition, if the peel is damaged, the acidity of the pulp prevents the growth of organisms (except acid tolerant fungi and acteria). On vegetables, in microflora is dominated by soil organisms. Erwinia and Pseudomonos usually have competitive advantage over other organisms that could potentially be harmful to humans. Changes in environmental conditions surrounding a product can result in significant changes in micro flora. Risk of pathogenic bacteria increases †¢ With film packaging (high rel ative humidity and low oxygen conditions). †¢ With packaging of products of low salt content and high cellular pH †¢ Storage of packaged products at too high temperature.Microbial growth on minimally processed products can be controlled by †¢ Sanitation of all equipment and use of chlorinated water are standard approach †¢ Low temperature during and after processing generally retards microbial growth. †¢ Moisture increases microbial growth. Removal of wash or cleaning water by centrifugation or other methods are critical. †¢ Low pH †¢ Low oxygen and elevated carbon-di-oxide levels, often retards microbial growth. [pic] ———————– CELERY STICKS PINEAPPLE SHREDDED LETTUCE BROCCOLI FLORETS CARROT STICKS PELLED POTTATO DICED ONION MANGOES CHILLED PEACHES MELONS TRIMMED SPINACH JACKFRUITS

Discussion question Essay Example | Topics and Well Written Essays - 500 words

Discussion question - Essay Example Assuming there are 1 billion writers, is it not possible that there are exactly two the same sentences There have been some records indicating exactly look alike in images, what more with written lines when writing has been here since time immemorial Is not plagiarism a simple commerce hiding behind the facade of protecting the rights of others, while prejudicing the rights of some 3. Excellent grammar is every tyro's dream. And, precisely, perfect grammar is crucial to every written document. However, some schools under-emphasized the study of grammar especially in vocational, technical, or mechanical areas, but, some also over-emphasized the same because of the need to be precise and accurate. For example, in the Law school or in journalism schools where accuracy is necessary. Consistently, to be articulate is also my aspiration and the challenge that drives me on. 4. I am very thorough with my work in life and in school. But, I am not necessarily the first to finish and turn a very accurate work. Nonetheless, I take my time and usually turn in a polished final product. I have done editing which is also called revising. It is centered on surface quality. Some would call it technicality of the written piece. Others would say it is more of corrections on the presentation rather than the content. It is commonly known as enhancement.