Physics, 09.12.2020 09:30 michaelchavez6959127
marcy pulls a backpack on wheels down the 100-m hall. The 60-N force is applied at an angle of 30 above the horizontal. How much work is done by Marcy
Answers: 2
Physics, 22.06.2019 14:20
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
Physics, 23.06.2019 01:30
Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class
Answers: 3
Physics, 23.06.2019 01:30
If the pressure in a gas is doubled while its volume is held constant. true or false
Answers: 3
marcy pulls a backpack on wheels down the 100-m hall. The 60-N force is applied at an angle of 30 ab...
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