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Physics 10 Online
OpenStudy (anonymous):

A pump is required to lift a mass of 800kg of water per minute from a well of depth 10m and eject it with a speed of 20m/s . A) How much work is done per minute in lifting the water? B) How much in giving the water the kinetic energy it has when ejected? C) What must be the power output of the pump? A. W= 78.4 kJ B. KE= 2.67 kJ but Why/How?? C. P= 1.81Hp How??

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