A .25 kilogram lump of putty is thrown to the east at 7.0 meters per second. The putty collides with a 1.5 kilogram block that is moving west at .5 meters per second. The putty and block stick together after the collision. A. Determine the velocity of the putty block after the collision

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)