Ahard-boiled egg of mass 55.0 g moves on the end of a spring with force constant 24.7 n/m . the egg is released from rest at an initial displacement of 0.305 m . a damping force fx=−bvx acts on the egg, and the amplitude of the motion decreases to 0.119 m in a time of 4.50 s .
calculate the damping constant b.

How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)