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Assuming 100% efficient energy conversion, how much water stored behind a 50cm high hydroelectric dam would be required to charge a 50 ampere-minute 12 volt battery with 600j of energy stored in it
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Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.
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Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.
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Assuming 100% efficient energy conversion, how much water stored behind a 50cm high hydroelectric da...
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