A heat pump using R-134a heats a house by using underground water at 8 C as the heat source. The house is losing heat to the surrounding air at a rate of 60,000 kJ/h. The refrigerant enters the compressor at 280 kPa and 0 C, and it leaves at 1 MPa and 60 C. The refrigerant exits the condenser at 30 C (and at the high pressure of 1 MPa). Determine (a) the power input to the heat pump, (b) the rate of heat absorption from the water, and (c) the increase in electric power input if an electric resistance heater is used to provide heating instead of a heat pump.