Physics, 03.02.2020 09:44 rcfarlo9342
Acar is traveling at a constant velocity of 60 km/h for 4 hours.
choose the correct statement about the acceleration of the car.
a) the acceleration of this car is zero.
b) the acceleration of this car is positive.
c) the acceleration of this car is negative.
d) the acceleration of this car is 15 m/s
Answers: 3
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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)
Answers: 3
Acar is traveling at a constant velocity of 60 km/h for 4 hours.
choose the correct statement...
choose the correct statement...
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