Physics, 20.01.2021 01:20 ryandelanomartinez
If the stone is thrown up vertically and return to the ground, its potential energy is
maximum
a) During the upward journey
b) At the maximum height
c) During the return journey
d) At the bottom
Answers: 3
Physics, 21.06.2019 17:00
Heat from the sun reaches earth to a. radiation b. convection c. conduction
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, 22.06.2019 15:00
10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!
Answers: 2
Physics, 22.06.2019 17:30
Describe cytokinesis in plants and animals. in animals: in plants.
Answers: 2
If the stone is thrown up vertically and return to the ground, its potential energy is
maximum
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