Electric Field

Name ____________________________________Electric Fields Go to http://phet. colorado. edu/simulations/sims. php? sim=Electric_Field_Hockey and click on Run Now. 1. You rub balloons in your hair and then hang them like in the picture below. Explain why you think they move apart and what might affect how far apart they get. A balloon becomes negatively charged when it is rubbed on a person’s hair.This occurs because all the protons and neutrons leave the balloon and attach to other objects such as the hair. If two balloons both have negative charges then both balloons will repel each other because same charges repel while opposites attract. 2. Test your ideas using Electric Field Hockey in the Practice mode. Make a table to record your observations about what affects the direction and speed of the puck. Your table should demonstrate that you have run controlled tests with all the variables. Charges introduced |Effects on positive charge repulsion | |Positive |Repel | |Negative |Attract | Charges introduced |Effects on positive charge speed | |Positive |Close to charge=Increasing repulsion speed | | |Far from charge= decreasing repulsion speed | |Negative |Close to charge=Increasing attraction speed | | Far from charge= decreasing attraction speed | 3. Reflect on your ideas from question #1 and your data from question #2. How do your observations support, dispute or add to your ideas about what affects how charged bodies interact? The data collected helps support my claims that like charges repel each other while opposites attract. In the case of the balloons both balloons are negative there for repelling each other. 4. As you put charges onto the playing area, arrows appear on the puck. †¢ What do you think the arrows on the puck are illustrating?The arrows illustrate the movement of the pucks as well as velocity. †¢ How do the arrows from the positive charges compare and contrast to the ones from the negative balls? The positive charges seem to repel the puck while the negatives attract. †¢ Investigate how you can use the arrows to predict the motion of the puck. 5. Write an explanation of how you can predict the motion of a charged hockey puck that is moved by other charged pucks. Explain using examples and drawings that include: †¢ How to use free body diagrams and vector addition. †¢ How negative and positive charges compare and contrast.

Process Design Matrix and Summary Essay

Mattress Express is in the service of delivering mattresses is available to the customers. The company strategy for deliveries is to be able to deliver mattresses in both a reasonable on timely manner and to the consumer’s home. The delivery cost is $49.99 and includes delivery, set up, and removal of the customer’s old mattress set. Mattress Express has a centralized warehouse that is strategically located in order to best service the surrounding community. The warehouse feeds five stores and houses the inventory for each of the locations. The warehouse also has a showroom attached which makes it easily one of the largest Mattress Express locations Mattress express offers a five day delivery schedule. The deliveries are handled by the warehouse manager. All deliveries are separated into time frames which are then designated into particular areas and group to gather for the most efficient routing. Mattress Express inventory levels are kept to a minimum as the company operates on cash only. Inventory levels fluctuate up and down as cash flow increases via the trends in business. All inventory is stored at the centralized warehouse and deliveries are operated from this location as well. PRODUCT Tempur-pedic is a product that is a standalone within the mattress industry. The company strategy is to build the most highly recommended bed in America. They also wish to sell direct to the consumer as well as through a series of retail partners. Another important aspect of their strategy is to excel as a marketing firm. Tempur-pedic has a total of three factories. The factories are located in Lexington Kentucky, Duffield Virginia, and a European facility in Denmark. Each factory produces Tempur-pedic products and  distributes to regional distribution centers. Tempur-pedic is of the utmost superior quality and craftsmanship. To ensure the quality level of the products one out of every four mattresses is tested. In addition to testing mattresses frequently the product integrity margins are also how to extremely precise standards. This ensures that all to review the customers are experiencing the highest level of quality possible.

Gender and crime Essay Example | Topics and Well Written Essays - 750 words

Gender and crime - Essay Example was â€Å"strongly related to rising unemployment and an increasing sense of despair among the groups, which finds expression or outlet through aggression and violence† and these crimes were dominant â€Å"in depressed and impoverished areas, such as council estates in the U.K since the late 1980s, often accompanied by new forms of crime such as ram-raiding, joy-riding and the rise of alcohol-induced brawling in towns and cities†( Edwards, 2006, p. 11). Thus, one can obviously come to the conclusion that crimes in U.K had been associated with masculinity as majority of the crimes in U.K was committed by males and the women were thought to be incapable of subjecting themselves to any violent crimes. However, one can notice that factors such as the emergence of new women liberation movements, growth in feminism and women empowerment have been instrumental in increasing criminal offences by women at an apparently a faster rate than offending by men since the 1960s. While criminology in U.K were always focussed on males crimes and offending towards the last two decades of the 20th century â€Å"female incarceration rates were sky-rocketing, leading to a surge in research on girls, women, crime, and the criminal justice system† and as the researchers have very well put it the war on drugs and the federal sentencing reform were the two factors that resulted in the incarceration of women (Miller, 2009, p. 246). Similarly, one can also notice that female Prisoner Population in England and Wales rose considerably in the 1970s to the 1970s. It is, therefore, imperative that there are more of extensive researches and studies on female offending in the U.K. It was Freda Adler who f irst argued that females crime rates have been on the rise in the late 1960s and the early 1970s. The researcher concluded that â€Å"women offenders were changing their patterns of offending to more ‘masculine’ styles, becoming more aggressive and violent; and that this was due to the growth of the

Math Speech or Presentation Example | Topics and Well Written Essays - 1000 words - 3

Math - Speech or Presentation Example longer  than the shortest side and 2 in. longer than the remaining side. Find the dimensions of this triangle. What is the length of the shortest side (in inches)?   38. The hypotenuse of a right triangle is 16 in. longer  than the shortest side and 2 in. longer than the remaining side. Find the dimensions of this triangle. What is the length of the hypotenuse (in inches)?   39. The hypotenuse of a right triangle is 16 in. longer than the shortest side and 2 in. longer than the remaining side. Find the dimensions of this triangle. What is the length of the remaining side (in inches)? (Format: Whole number such as 45 45. At depths of more than 1000 m (a kilometer), water temperature T (in degrees Celsius) in the Pacific Ocean varies inversely as the water depth d (in meters). If the water temperature at 4000 m is 1 °C, what would it be at 8000 m in degrees Celsius (state your answer in decimal format, rounded to the nearest hundredth)?   46. A woman has a 28-in. waist and 34-in. hips. Write the waist-to-hip ratio as a decimal, rounded to the nearest hundredth. (If the waist-to-hip ratio is over 1.0 for men or over 0.8 for women, the risk of heart attack or stroke is five to ten times greater than for persons with a  lower

Accounting Essay Example | Topics and Well Written Essays - 500 words - 21

Accounting - Essay Example From the annual report 2011 of the Toyota, it is clear that company attained $214,318 million in sales of products. The net income of the company for the financial year 2011 is $4,909 million. When the company’s net income per share is $1.57, its cash dividends per share is $0.60. In addition, Toyota’s total current assets stand at $142,270 while total current liabilities represent the figure $129,778. The annual report 2011 indicates that the company’s total assets or total liabilities are $358,607 million. Finally, the consolidated balance sheet also shows that the total shareholder’s equity of Toyota for the year 2011 is $131,329 (Toyota, 2011). While assessing the management discussion and analysis section of the annual report, it is clear that the company management greatly emphasizes on automotive operations as this segment accounts for 89% of the Toyota’s total revenues. The report specifically states that Japan and North American are the potential market segments for the company on the basis of vehicle unit sales for the fiscal year 2011. The general tone of the management’s comments indicates that the firm would have attained much more profitability if its operations had not been affected by the Great East Japan Earthquake (Toyota, 2011). The company’s vehicle unit sales declined in its major markets including Japan and North America. However, Toyota could achieve notable improvements in Asia and other market segments as compared to the previous year. This trend indicates that Asia is developing as a potential market segment for Toyota while the company is gradually losing its roots in North Ameri ca. However, the overall vehicle unit sales have been increased from 72, 37,000 in 2010 to 73, 08,000 in 2011 despite the adverse impacts of the earthquake (Toyota, 2011). In total, the fiscal 2011 was good year for the company. The discussion summary shows that the

Into the Fray Case Study Example | Topics and Well Written Essays - 1000 words

Into the Fray - Case Study Example In my opinion, Danielle demonstrates the completely legitimate political behavior. After she has attempted to establish a professional relationship with Michael and upon his refusal and inaction, she has no reason to regard Michael as an ally. Still, the communication she has with Michael and his subordinates is straightforward by emailing and meetings proposals. The problem with political behavior is not with Danielle’s moves, but with Michael’s disregard of â€Å"social alliances that make an organization run†. Therefore rumors and interpretations make Danielle's behavior seem threatening and illegitimate. The only problem is that Danielle is acting and connecting to people in order to obtain the desired position, and Michael is not.First of all, Michael should decide whether or not he wants a career at Lafleur (Hassan). If he does, then his ambition should be long-term oriented and he and his family should judge as to what the best move for Michael is. If he r eally wants to develop in Lafleur, then he should take this opportunity seriously and discuss the personal implications with his family. Michael lacks international experience and the China position is an opportunity for him to develop his leadership abilities in networking and grow in the company. What is more, CEO’s proposition is only indicative that Michael is not the best candidate for Beaumont's place right now, but it also proves Pierre’s trust in Michael’s abilities and his desire to keep Michael motivated and within the company.

Non-Human Value Essay Example | Topics and Well Written Essays - 250 words

Non-Human Value - Essay Example This is because of the spillover of the larvae that do not generate in the plantations (Lucey & Hill 2012). By contrast, species that cannot breed in the plantation increase near the forest. These have a negative impact on the plantations, to rectify the result; preservation of the forest around the plantation in the scattering of some species through the countryside. The world is experiencing rapid population growth of about 6 billion, which is significantly a large number. Moreover, with these large populations of humans on earth overwhelming the energy and resources generated, it is raising alarm of environmental challenges (Lucey & Hill 2012). These are leading to excessive exploitation of resources in order to sustain the population. In this regard, survival for the fittest is becoming a trend in the world to curb the world hunger. Due to these, the world is experiencing a number of changes fuelled by the population action. In order to control the population, there have been strategies to regulate the world’s population. In this context, there has been the introduction of contraceptive pills and educating the women on the need to have few children. On the other hand, these will help in the conservation of the environment (McKibben, 2012) McKibben, B. (2012). A special moment in history: The challenge of overpopulation and overconsumption. In L.P. Pojman & P. Pojman (Eds.), Environmental ethics: Readings in theory and application, (6th ed., pp. 260-271). Boston, MA: Wadsworth,