There are two high tides and two low tides in each 25-hour period because: Group of answer choices Earth completes a full rotation every 24 hours, but the Moon moves too. Earth orbits around the Sun in a little over 24 hours. the Moon orbits Earth in 25 hours. heating and cooling of the seas occur twice each day.

Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)