The relationship between Eddie and Catherine Essay Example for Free

The relationship between Eddie and Catherine Essay These other variable s are: Cross-sectional area of the wire (0. 02mm) Material (Constantan 36 SWG) Temperature (The voltage does not need to be kept constant but to be able to calculate the resistance of the wire it must be measured at each length because Ohms Law is true providing the temperature is constant. ) Safety Ensure that all connections are secure before the power is switched on. Do not touch the wire being used as a resistor until after the power has been turned off. It is recommendable not to touch the wire for a short while after the power has been switched off because the wire may be hot. Ensure that the work area is dry because water is a very good conductor and could cause electrocution. Take care when using scissors to cut the wire/sellotape. All accident must be reported to the teacher immediately. Potential Difference (Volts) Current (Amps) Resistance (? ) Length of Wire (cm) 1 2 Average 1 2 3 Average 1Conclusion and Graph It was previously predicted that the greater the length of wire the greater the resistance. I also predicted that the resistance of the wire was directly proportional to the wires length. The graph produced from the averages of the resistances obtained in the experiment proves the prediction because in the graph a straight-line through the origin was produced. The graph plotted was Resistance versus wire length graph (R against L) therefore the resistance is directly proportional to the length of the wire (R ? L), as predicted in the prediction. The prediction predicted that the greater the length of wire the greater the resistance. The resistance will be greater because, in longer wires, electrons have the pass more ions (opposition) when travelling through the wire. This means that there is a greater probability that an electron will collide with an ion. The more collisions the more times an electron is knocked off course and thus more time to travel through the material. Using this theory, it seems that the resistance of a wire can be quantified, because it seems that if an electron has to pass twice as many ions as in the original wire then the electron will collide with twice as many ions and will, consequently knocked off course twice as many times with the result being that the electron takes twice as long to travel through the wire. Doubling the length of wire doubles the number of ions in the wire and therefore it will take an electron twice as long to go through a piece of wire twice as long. In a similar manner, it will take an electron three times as long to travel through a wire three times as long. This can then be applied to a piece of wire x times as long as the original wire because we can see that it will take an electron x times as long to pass through a wire x times as long (on average). Thus, we can deduce that: R = x L (x is a constant) Evaluation The think that the experiment performed was successfully as there were no anomalous results plus the results produced a perfect line of best-fit. The fact that there we no anomalous results shows that the method was suitable and was carried out accurately. It also suggests that the points mentioned in the preliminary work regarding leaving the power supply on for the minimal time to keep the temperature constant which achieved accurate results and suggests that the choice of voltage and wire lengths was made successfully. However, some slight inaccuracies did occur in the experiment and this led to a line of best-fit i. e. there was not a straight-line joining all of the points together being drawn. The inaccuracies it seem could have been attributed by the following: Inaccurately judging the wire length, the length of wire may have been slightly inaccurately judged because judging the wire to be completely straight and taut using just our eyes was extremely difficult. Temperature change this variable was the most difficult to keep constant and it seems that this variable was, in fact, not kept constant. It seems that the wire will heat up as soon as the power is switched on and current is allowed to flow because, as soon as the electrons start colliding with the ions in the wire, the wire gains internal energy. Thus, it seems that, as soon as the power was switched on, the wire began to heat up, however slightly. Thus, whilst the temperature rise was kept as negligible as possible by leaving the power switched on for the minimum possible time, it seems that the temperature would have risen and this factor may have affected the results. Meters, the ammeter and voltmeter used measured the current and volt across the wire to the degree of one hundredth of an amp and volt, respectively i. e. the current and voltage measurements may be inaccurate by the degree of up to, one hundredth of an amp/volt. Similarly the resistance values calculated from the current and voltage measurements may be slightly inaccurate. Contact with crocodile clips, this factor may have affected the accuracy of the results, but this is extremely unlikely as it was ensured that the crocodile clips made definite contact with the wire being used as a resistor. These factors may have produced extremely slight inaccuracies and the results were only slight inaccurate and so it seems that the minor inaccuracies that the above factors may have caused may have caused the results in the investigation to be slightly inaccurate. Further work in the experiment could be to find the resistance of the Constantan wire used in the experiment. To find the resistance of the wire we need the two equations below, which were found from extra research. The equations tell us that the resistance of a wire is: i) Directly proportional to its length (L) i. e. R ? L ii) Inversely proportional to its cross-section area (A) i. e. R ? 1/A Combining the two statements we get: R ? L x 1/A The above can then be written as an equation if we insert a constant: Therefore, R = x L/AÃ'Ž Where x is a constant called the resistance of the material (for a fixed temperature and other physical conditions). The resistance of a material is numerically the resistance of a sample of unit length and unit cross-section area, at a certain temperature. To find x we can rearrange the equation R = x L/A to get x = AR/L. Thus, to find the resistance (x) of the Constantan wire used in this experiment we must substitute for A, R and L in the equation x = AR/L. The wire being used in the investigation should have a uniform cross-sectional area, but, to confirm this, the diameter of the wire can be measured using a micrometer. In this investigation the diameter of the wire was 0. 02mm and so the cross-sectional area of the wire can be estimated, by assuming the wires cross-section is circular, using the equation: Cross-sectional area = ? r2 Where r is the radius of the circular cross-sectional area, which is half of the diameter Other ways to further the experiment would be to use wires made from different materials to find differences in resistance that each wire produced. It could then be decided which of the wires was the best conductor. Cross-sectional area could also be investigated, if the experiment was furthered, and it could be investigated whether the resistance of a wire is inversely proportional to its cross-sectional area. To investigate the effect of cross-sectional area on resistance of similar wires (i. e. wires of the same length, material, etc. ) with different cross-sectional areas will be used. The effect of temperature on a wire could also be investigated. I believe that the experiment was performed successfully and that the results obtained were accurate. The predictions that were made were also confirmed by the results and the wire obeyed the rules that it was expected to. This experiment we can confirm that the resistance of a wire is directly proportional to the wires length. Tarique Sabah Physics Coursework Show preview only The above preview is unformatted text This student written piece of work is one of many that can be found in our GCSE Electricity and Magnetism section.

Homeless Children In America Essay -- essays research papers fc

Homeless Children in America   Ã‚  Ã‚  Ã‚  Ã‚  To be homeless is to not have a home or a permanent place of residence. Nationwide, there is estimated to be 3.5 million people that are homeless, and roughly 1.35 million of them are children. It is shown that homeless rates, which are the number of sheltered beds in a city divided by the cities population, have tripled since the 1980’s (National Coalition for Homeless, 2014). Worldwide, it is estimated that 100 million children live and work on the streets. Homeless children are more at risk than anyone else, and are among the fastest growing age groups of homelessness. Single women with children represent the fastest growing group of homeless, accounting for about 40% of the people that are becoming homeless today.   Ã‚  Ã‚  Ã‚  Ã‚  Children that are homeless can become this way for a variety of reasons. Youth can be on their own, with no permanent residence or even usual place to sleep. They could have also been separated from their own homeless parents and placed in foster care or living with some of their relatives. A child could be part of a family that becomes homeless, or even belong to a single parent. The decline in low cost housing, which has been declining over the last 20 years, could be to blame for the amount of people on the streets. With the explosion of growth in the suburbs, these cities have created local governments that make it easy to keep low income housing out of their communities. Ideas such as redlining and predatory lending can lead to low income families not receiving the needed loans to move into housing, which can force them into the streets.   Ã‚  Ã‚  Ã‚  Ã‚  The programs to help the poor and homeless are few and far between. There are five general programs that assist those who are not able to provide for certain things, such as food, shelter and care for the children. These programs are Aid to Families with Dependent Children (AFDC), the Food Stamps programs, Supplemental Security Income (SSI), Unemployment Compensation, and General Assistance. These programs are generally harder to get into than what most people think. People must meet strict requirements to be able to receive money from the federal government. For example, a household qualifies for the expedited service of the Food Stamp program, a family must have less than $150 in gross monthly income, be a migrant or seasonal farm worker with resources o... .... People refuse to get jobs once they are on welfare, which hurts their chances even more of saving up money to be able to buy or rent housing, which could force them eventually out onto the streets. Affordable housing is another issue that needs to be addressed quickly to alleviate the problem of homelessness. Low income housing is generally associated with crime and other undesirable characteristics, which force other communities to shun these types of housing proposals. I agree with the concept that the CWS is now implementing into their system, by not removing a child from their own household unless absolutely deemed necessary. By giving the child a chance to live in their own house and not be placed into foster care so quickly gives the child a future that would otherwise not be so great. Bibliography Baumohl, J. Homelessness in America. (1996). Phoenix, AZ: The Oryx Press. Kryder-Coe, J., Salamon, L.M. & Molnar, J.M. (1991). Homeless Children and Youth. New Brunswick, NJ: The Transaction Publishers. National Coalition for Homeless. (2014). How Many People Experience Homelessness? Web 10 April 10, 2015 http://www.nationalhomeless.org/numbers.html.   Ã‚  Ã‚  Ã‚  Ã‚  

Pursuit of Happiness (Siddhartha Essay)

Throughout Herman Hesse’s novel, Siddhartha, Siddhartha defines his own happiness and Siddhartha does not let anything beside himself dictate his happiness. Throughout his journeys, Siddhartha becomes enlightened because of the way he can so easily find happiness. Siddhartha proves this through his life decisions that go against the grain of â€Å"normal† decision making. Siddhartha throws ideas of money out the window if it is not what is going to make him happy.After a long journey, Siddhartha is finally able to find his happiness. Everybody is always scrambling for happiness; however, there are only few who can actually obtain happiness. The story begins with the background of Siddhartha: son of a Brahmin, lots of friends, plenty of money and advantages in life. Yet, Siddhartha decides he wants to become a Samana. At this point in the story, Siddhartha is willing to do anything to get his father’s permission to become a Samana. Once he earns his father’ s blessing, Siddhartha becomes a Samana and leaves behind all the advantages he had in life. This shows that Siddhartha is not ruled by material things.Siddhartha shows that making decisions solely on what will make him happy is the true way to find happiness. With no regard for money or pleasing others, many would call Siddhartha selfish; however, any happy person must be selfish because if a person is not fulfilling his or her needs then he or she is not truly happy. On the other side, if someone is fulfilling his or her needs, he or she is, in some ways, selfish. In chapter eight, Siddhartha raves and is elated over a simple night’s sleep: â€Å"What a wonderful sleep it had been! Never had sleep so refreshed him, so renewed him, so rejuvenated him!Perhaps he had really died, perhaps he had been drowned and was reborn in another form. No, he recognized himself, he recognized his hands and feet, the place where he lay and the Self in his breast, Siddhartha, self-willed, in dividualistic. But this Siddhartha was somewhat changed, renewed. He had slept wonderfully. He was remarkably awake, happy and curious† (91). This shows that Siddhartha enjoys the simple things in life and he is happy. By the end of his life, Siddhartha is happy and enlightened; however, he is not unwaveringly happy throughout his life. Siddhartha goes through depression and even thoughts of suicide.After leaving his wife and child –Who once were what made him happy- Siddhartha contemplates suicide but after being found by the river,  Siddhartha realizes that life is worth living. He later discovers the beauty of depression: â€Å"’Things are going downhill with you!’ he said to himself, and laughed about it, and as he was saying it, he happened to glance at the river, and he also saw the river going downhill, always moving on downhill, and singing and being happy through it all. He liked this well, kindly he smiled at the river.Was this not the river i n which he had intended to drown himself, in past times, a hundred years ago, or had he dreamed this?† (96). Siddhartha goes from rich to poor to rich again to poor again, yet through almost every change in his life, Siddhartha remains happy. An unknowingly eerie real life comparison to Siddhartha is former NFL running back: Ricky Williams. Like Siddhartha, Ricky Williams went through life and did whatever made him happy and did not let outside influences make decisions for him since he simply did whatever made him the happiest. Williams, like Siddhartha, started his journey as a young man with many advantages.Being a superstar athlete, Williams received a full ride scholarship to the University of Texas. After three years of being the big man on campus, Williams entered the NFL draft in 1999 and was selected fifth overall by the New Orleans Saints. After three successful seasons with the Saints, Williams was traded to the Miami Dolphins. After testing positive for a couple of drug tests, Williams was faced with a short suspension. However, Ricky Williams shocked the world by announcing his retirement from football in the prime of his career, similar to Siddhartha’s choice to embark on Samana life. Williams was finding himself lost in superstardom and was no longer enjoying the game he so dearly loved.The Miami Dolphins demanded money back off of Williams’ contract claiming that he had not held up his end of the bargain. Williams did not care about the money though. In the next year Williams downgraded to a modest house and lived with his long time girlfriend. Williams even spent time living off the grid in Australia and struggled with diagnosed clinical depression problems. After a one-year sabbatical from the game, Williams returned to his homeland of happiness and played organized football for the next six years and made more money but only because he could; Williams could have played football for free because it was his true passion. Th is part in Williams’ life is similar to Siddhartha’s time spent with Kamala in the way that Siddhartha did become a wealthy business man but only because that was what made him happy.Siddhartha makes a similar decision as Williams when he says, â€Å"He could have remained much longer with Kamaswami, made and squandered money, fed his body and neglected his soul; he could have dwelt for a long time yet in that soft, well upholstered hell, if this had not happened: the moment of complete hopelessness and despair and the tense moment when he had bent over the flowing water, ready to commit suicide. This despair, this extreme nausea which he had experienced had not overpowered him. The bird, the clear spring and voice within him was still alive –that was why he rejoiced, that was why he laughed, that was why his face was radiant under his gray hair† (98).The point of the comparison is that even people who seem to have it all may be lacking happiness, which t o Siddhartha and Ricky Williams is the most important aspect of life. Williams’ life took him all sorts of ways and through years of trying to find inner peace he was able to be a happy man just like Siddhartha. As Siddhartha says in chapter nine, â€Å"my path had once led me from his hut to a new life which is now old and dead† (101). Siddhartha’s happiness is a vital theme throughout Hermann Hesse’s novel.Rightfully so, Hesse shows happiness as one of the main goals of life. Similarly to Siddhartha, Ricky Williams also displays happiness through almost all walks of life and they both prove that one must suffer and do some searching before finding his or her true happiness. Through disregard of others’ opinions and society’s view of happiness is the only way to find oneself and the only way that Siddhartha could find himself and reach enlightenment.

Value Alignment for Coca-Cola Bus/475 - 1060 Words

Value Alignment for Coca-Cola BUS/475 Value Alignment for Coca-Cola The Origin and Evolution of Coca-Cola’s Workplace Values In May 1886 as a one man business in Atlanta, GA, Dr. John Pemberton, a Pharmacist who created the noncarbonated drink as medicine used as a medical elixir, nerve, and brain tonic during the origin(s) and subsequent evolution of Coca-cola started. Later carbonated dihydrogen monoxide was integrated into the drink presently known as Coca-Cola. Robert Goizueta is the current operator of Coca-Cola, thinks that without people the company would not be victorious. Coca-Cola believes that employees and bellwethers in the company will live their personal and workplace values. Diversity is the heart of the company and†¦show more content†¦The values of Coca-Cola include the set mission, which consist of creativity, inspiration, act with urgency, consumer satisfaction, the brand to promote happiness, and the ability to refresh the world that will make a difference. Meanwhile, the Coca-Cola organization’s values drive the company to remain competitive and take a leadership posi tion that properly meets the needs of the consumer in the marketplace. Nonetheless, the organization understands the importance to be a vital community citizen and remain responsible for its actions. Value Alignment between Individuals and Coca-Cola Coca-Cola makes a concerted effort to align the values of their organization with both their employees and customers. This alignment of values is evident in the company’s shared-value approach to doing business. This approach is intended â€Å"to appeal to consumers and stakeholders who increasingly judge companies and brands as much on the content of their character as the quality of goods and services they produce and market,† (â€Å"Coca-Cola focuses on ‘shared value’,†2012, para. 1). 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