A water pump is driven by an electric motor during its operation. Water enters the pump at 15 m/sec and 140 kPa and leaves it at 8 m/sec and 390 kPa. The elevation change between the entrance and exit locations of the pump is negligible. The volumetric flow rate of water through the pump is 0.28 m3/sec. The pump operates at an efficiency of 89% whereas the motor efficiency is 92%. Calculate the
a) shaft power required to run the pump
b) electric power required to run the motor (in hp - round the answer to the nearest higher whole number).