Physics
A water pump raises 50 litres of water through a height of 25m in 5s. Calculate the power of the pump used (assuming 100% efficiency).
(Take g = 10 N kg-1 and density of water = 1000 kg m-3).
Related Questions
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(i) the energy spent by the machine.
(ii) the power of the machine if it is 100% efficient.
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(i) kWh
(ii) joule.
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Calculate:
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