What is your friend’s angular velocity immediately after your friend flips the bicycle wheel? The bicycle wheel can be modeled as a hoop (Ihoop = mR2). Your friend can be modeled as a cylinder (Icylinder = 1 2 Mr2) of mass M = 60.0 kg and radius r = 0.32 m. 24.A < 0, 5.72, 0 > rad/s B < 0,−5.72, 0 > rad/s C < 0, 14.00, 0 > rad/s D < 0,−14.00, 0 > rad/s E None of the above

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)