An apartment block receives water from a nearby reservoir. A pump is necessary to lift the water into a storage tank at the top of the building. The acceleration due to gravity is 10 m`s^(-1)` ? How much energy does the pump supply to lift each kilogram of water into the tank?
A
50 J
B
100 J
C
400 J
D
500 J
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The correct Answer is:
B
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