a eureka can of mass 100g and cross-sectional area 100cm2 is filled with water of density 1g/cm3.A piece of metal of mass 20g and density 8g/cm3 is lowered carefully into the can as shown below. Calculate the total mass of water and Eureka can before the metal was lowered

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)