7. An engine pumps 2 tons of water in one minute to an average height of 10 m. Calculate the power of the engine if 30% of the energy is wasted in the process.
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The power of a motor pump is 2 kW. How much water per minute the pump can raise to a height of 10 m?
Gopal S.
A water pump lifts water from a level $10 \mathrm{~m}$ below the ground. Water is pumped at a rate of $30 \mathrm{~kg} /$ minute with negligible velocity. Calculate the minimum horsepower the engine should have to do this.
"Power of a water pump is 2 kW. If g =10 m / sec^2 , the amount of water it can raise in one minute to a height of 10 m is"
Dinesh C.
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