A motor-driven centrifugal pump delivers 15 °C water at the rate of 10 m3/min from a reservoir, through a 2500-m-long, 30-cm I.D. plastic pipe, to a second reservoir. The water level in the  second...

A motor-driven centrifugal pump delivers 15 °C water at

the rate of 10 m3/min from a reservoir, through a 2500-m-long,

30-cm I.D. plastic pipe, to a second reservoir. The water level in the

 second reservoir is 40 m above the water level in the first reservoir.

The pump efficiency is 75%. Find the motor output power. The

pipe entrance is square edged.