Kinetic energy to watts
[DOC File]UNIT 2: WORK AND ENERGY
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a. 5 watts b. 10 watts c. 50 watts d. 250 watts 8. When a ball is thrown into the air, the potential energy gained must come from its kinetic energy. As the ball gains potential energy, its speed will: a. increase. b. decrease. c. remain the same. d. Not enough information is given. 9. Potential energy is energy due to the: a. motion of an ...
[DOC File]www.sisd.net
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F Internal energy . G Potential energy . H Kinetic energy. J Heat energy. What is the maximum amount of work that a 6000.-watt motor can do in. 10. seconds? A 6.0 × 101 J B 6.0 × 102 J. C 6.0 × 103 J. D 6.0 × 104 J. When 20. joules of work is done in 4.0 seconds, what is the power developed? 0.20 watt. 5.0 watts. 16 watts. J 80. watts
[DOC File]Work, Energy & Momentum Notes
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Relating Work and Kinetic Energy (aka. The Work-Energy Theorem) Wnet = KE = Roughly speaking, _____. The net work done on an object by the force or forces acting on it is equal to the change in the kinetic energy of the object. ... Find the average power developed by the engine (express in watts and hp). Find the instantaneous power when the ...
[DOC File]Mechanical Energy
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Mechanical energy can be either kinetic energy (energy of motion) or potential energy (stored energy of position). ... One horsepower = 750 Watts. All machines are typically described by a power rating. The power rating indicates the rate at which that machine can do work upon other objects.
[DOC File]Physical Science Formula Sheet
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Work = Force x distance 37 J (Joules) P = W / t Power = Work / time 60 w (watts) PE = mgh Potential Energy = mass x acceleration due to gravity x height 45 J KE = ½ m x v2. Kinetic Energy = ½ mass x velocity squared. 100 J. Work = (KE Work = change in kinetic energy J = J
[DOC File]Ch 9 Energy - Fenger Academy High School
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Jan 30, 2012 · Calculate the Watts of power expended when a force of 1 N moves a book 2 m in a time interval of 1 s. Calculate the power expended when a 20-N force pushes a cart 3.5 m in a time of 0.5 s. Work and Power Homework. ... Kinetic Energy = Work done = ½ mass * velocity2.
[DOCX File]PE and KE worksheet
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Calculate his kinetic energy if his mass was 94.0 kg. Assume he ran with a constant speed. (5123 J) Shani Davis of the United States won a speed-skating competition in Salt Lake City in 2009. He did this by skating 1000m with an average speed of 54.2 km/h. If his mass was 84.0 kg, what was his kinetic energy? (9520 J)
[DOC File]Lab 8: Momentum, Energy, Work, and Power
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From this we can determine the potential energy which is also equal to the kinetic energy immediately after the collision of the ball and the pendulum. ... and the average power rating in watts, kilowatts, and horsepower using the formula, P = . W = fd = (1008.47 N)(.870 m) = 877.4 J P = = = 324.96 watts.
[DOC File]Cabrillo College
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Watts. The most common unit of power is the Watt. A Watt is a rate of energy consumption of 1 Joule per second. ... Kinetic Energy depends on how fast something is moving. But how does something’s kinetic energy relate to its speed? If it moves twice as fast, does it have twice as much KE? Here’s a fun experiment you can do to help find out.
[DOC File]Work, Energy and Power Review Package
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3) Kinetic Energy: energy of a motion. Measured in Joules, J. Ek = ½mv2 . 4) Law of Conservation of Energy: Energy cannot be created or destroyed, only transformed into one type or another. If there is no friction (only conservative) forces then the total initial energy is equal to the total final energy…
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