Q5. Water is pumped at a constant volume flow rate of 9 m3 /h from a large reservoir resting on the floor to the 5m above discharge tower. The friction losses in the 50-mm pipe from the reservoir to the tower is 2.5 J/kg. At what height in the reservoir must the water level be kept if the pump can deliver only 40.08 J/kg? (Considering alpha (energy correction factor) is 1)