Water enters a pump at 100 kPa and 30C at a rate of 1.35 kg/s, and leaves

Question:

Water enters a pump at 100 kPa and 30°C at a rate of 1.35 kg/s, and leaves at 4 MPa. If the pump has an isentropic efficiency of 70 percent, determine
(a) The actual power input,
(b) The rate of frictional heating,
(c) The exergy destruction, and
(d) The second-law efficiency for an environment temperature of 20°C.