if 500kg of water falls per sec from a 40m height,calculate power likely to be available assuming 70% efficiency
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Answer: Power = 140000 Watt
Explanation:
Initial potential energy = mgh
= 500*10*40
=200000 J
final potential energy = 0
loss in potential energy = work done
work done = 200000J
power = work done /time
=200000/1=200000 watt
efficiency = 70%
actual power generated = 200000*0.7 watt
=140000 watt
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