An engine deliversb200kilogram of water per minute to a height of 22 meter.calculate actual power of the engine if the efficiency is 80 percentage.
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Step-by-step explanation:
power = rate of energy consumed
= energy/time.
energy here is potential energy.
PE= mgh = 200*10*22( I've taken g as 10,not 9.8)
= 44000 J
power = 44000/60 = 733.33 W.
but this power is generated by engine when the efficiency is 80%.
to calculate the original power, we need to calculate full power generated i.e
total power= (733.33)/0.8 = 916.667 W.
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