A 30 metre deep well is having water up to depth of 15 m An engine evacuates it in one hour The average power of the engine if

Question

A 30 metre deep well is having water up to depth of 15 m An engine evacuates it in one hour The average power of the engine if the diameter of well is 4 m will be 10 kW P 9 5 kW 11 55 kW 12 6 kW Solution Answer 3 Mass of water V p h x p x 2 x 15 x 1000 30 15 h 2 W mgh 22 5 m 4x15x1000 9 8 22 5

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