90 points The system shown above is released from rest. The horizontal surface is frictionless, and there is sufficient friction for the uniform hoop to roll smoothly down the ramp. The hoop has a mass of 6.2kg and a radius of 27 cm. The pulley is a non - uniform disk with a mass of .25 kg, radius of 6.2 cm, and B = .38. The rope does not slip on the pulley. Determine the displacement of the box when the kinetic energy of the pulley is 443J.

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Newtons view of arrangement of the universe

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)