A pump is required to lift 800 kg of water per minute from a well 13.8 m deep and eject it with a speed of 17.9 m/s. How much work is done per minute in lifting the water? How much work is done in giving the water the kinetic energy it has when ejected?

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Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
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A pump is required to lift 800 kg of water per minute from a well 13.8 m deep and eject it with a speed of 17.9 m/s. How much work is done per minute in lifting the water? How much work is done in giving the water the kinetic energy it has when ejected? 

Expert Solution
Step 1: Introduction of the given value.

Here 

the mass of water lifted per minute  = 800 kg

depth of well = h = 13.8m 

the ejected speed of the water = v = 17.9 m/s

I have to find

a. The work is done per minute in lifting the water.

 b. The work is done in giving the water the kinetic energy it has when ejected.





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What must be the power output of the pump? 

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