water falls from a height of 30 metre in the waterfall. if hundred m^3 of water falls in 1 minute, find the power of water.
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Answer:
Height = 30m
power = work done / time
p = mgh/t
Change meter cube to litre
100m3 = 100000 litres
p = 100000*9.8*30/60
= 29,400,000/60
= 490,000Watts
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