Physics, 24.11.2021 22:10 kahnerp6448
A water balloon is dropped from a window from some height above the ground. If it takes the balloon 1.9 seconds to reach the ground, how high is the window?
Answers: 1
Physics, 22.06.2019 14:20
4r-134a enters the condenser of a residential heat pump at 800 kpa and 50Ā°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3Ā°c. the refrigerant enters the compressor at 200 kpa superheated by 4Ā°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
Physics, 22.06.2019 18:00
By what primary heat transfer mechanism does the sun warm the earth?
Answers: 1
Physics, 22.06.2019 18:30
Aheavy piece of hanging sculpture is suspended by a90-cm-long, 5.0 g steel wire. when the wind blows hard, the wire hums at its fundamental frequency of 80hz. what is the mass of the sculpture?
Answers: 3
A water balloon is dropped from a window from some height above the ground. If it takes the balloon...
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