Work and Energy Worksheet Section 1 Work: 1. A person pulls a toboggan for a distance of 35.0m along the snow. The force in the rope (tension) is 94.0N. How much work is done on the sled? Solution: W= Fd W= 94.0N x 35.0m W= 3290 Nm or J 2. The cable of a large crane applies a force of 2.2x10^4N to a demolition ball as it lifts it vertically a distance of 7.6m. a) How much work is done on the ball? b) Is the work positive or negative? Why? Solution:
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company that develops and manufactures Wind-Turbines. A number of customers are complaining that the Wind-Turbines they purchased have had a reduction in their working efficiency after a few months of being in service. Your team has been set up to analyse the problem and come up with a solution. “ Authors: Attard Andre’ Galea Andre’ Podesta` Christoph 3/25/2012 Vassallo Alan A scenario has been created to simulate a typical problem in a wind turbine manufacturing firm. Complaints
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N09/4/PHYSI/SPM/ENG/TZ0/XX+ 88096504 Physics standard level PaPer 1 Monday 16 November 2009 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question‚ choose the answer you consider to be the best and indicate your choice on the answer sheet provided. 8809-6504 16 pages © International Baccalaureate Organization 2009 – 2 – 1. N09/4/PHYSI/SPM/ENG/TZ0/XX+ The
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Calories: The name calorie is used for two units of energy. Although these units are part of the metric system‚ they have been superseded in the International System of Units by the joule. One small calorie is approximately 4.2 joules. Calories are also most known to be used in foods and diet‚ which is key to athletes. Joules: A Joule is equal to the energy transferred to an object when a force of one newton acts on that object in the direction of its motion through a distance of one metre. Kilocalories:
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Forms of Energy Energy Is the capacity to cause change Exists in various forms‚ of which some can perform work Kinetic energy Is the energy associated with motion Potential energy Is stored in the location of matter Includes chemical energy stored in molecular structure AP Biology 1 Division Ave. High School Ms. Foglia AP Biology Energy can be converted From one form to another On the platform‚ a diver has more potential energy. Climbing
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disk of radius R = 0.25 m has a string wrapped around it‚ and a m = 3 kg weight is hanging on the string. The system of the weight and disk is released from rest. a) When the 3 kg weight is moving with a speed of 2.2 m/s‚ what is the kinetic energy of the entire system? KETOT = KEwheel+KEweight = (1/2)(I)(w2)+(1/2)(m*v2) =(0.5* v2)(m+1/2M) =0.5*(2.2^2)*(3+(.5*15)) J b) If the system started from rest‚ how far has the weight fallen?
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RENEWABLE ENERGY RESOURCES PAPER PRESENTED BY NAME: S.ANIRUTHAN- II-MECHANICAL R.MAHESH- II- MECHANICAL JAYARAM COLLEGE OF ENGINEERING & TECHNOLOGY. TRICHY-621014 _____________________________________________ ABSTRACT The electricity requirements of the world including India are increasing at alarming rate and the power demand has been running ahead of supply. It is also now widely recognized that the fossil fuels (i.e.‚ coal‚ petroleum and natural gas)
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Christie JacksonHIS101FA12-1 History v. Hollywood: Gone With the Wind Gone With the Wind is a classic movie that has been loved by many Americans over many generations. In 1939‚ the film won eight Academy Awards. It is a great love story set in the American Civil War and the period of Reconstruction afterwards. Told from the viewpoint of the South‚ the Confederacy‚ it is more of a dramatic love story than a war movie. David O. Selznick produced the film and he hired two southerners as advisors
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“wireless”. They are not “hooked up” to external sources of power. Solar lights produce no pollution and cause no harmful environmental effects. Once installed‚ energy is free Fourteen solar farms have a combined installed capacity of 388.4 megawatts and in 2011 generated 0.1 billion kilowatt-hours. (Source: Canadian Centre for Energy Information compilation‚ 2013) There are now 3‚133 megawatts of solar power installed in the U.S. That’s enough to power nearly 3 million homes. The average cost
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Energy Balance complete by __UY_HUYNH____ Energy Balance Activity ____ out of 25 points This assignment will give you the opportunity to apply some of the principles discussed about Energy Balance. Please provide detail in your answers. Be sure to show your work. Fill in the following chart. You will use this information to complete the assignment below: Use a nonstretching tape measure (used in sewing) for the waist and hip circumference. I will have some available in class for your use if
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