Physics, 28.06.2019 08:40, manarsadi6
Can you cool a kitchen by leaving the refrigerator door open while the refrigerator is operating? a. no. since the refrigerator is operating, the “heat pump” transfers thermal energy from the inside of the refrigerator to the outside of the refrigerator which is presumably in the same room. since this process is not 100% efficient due to the second law, the average temperature of the room will increase over time. b. no. since the refrigerator is operating, the “heat pump” transfers thermal energy from the inside of the refrigerator to the outside of the refrigerator which is presumably in the same room. due to the second law, there will be no change in temperature due to the perfect efficiency of the heat pump.
Answers: 2
Physics, 22.06.2019 03:30, hannahbaak
Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s. a. determine jay’s mass. b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)
Answers: 1
Physics, 22.06.2019 11:00, kylieweeks052704
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 1
Physics, 22.06.2019 18:00, skylarleannjone2751
The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.
Answers: 1
Can you cool a kitchen by leaving the refrigerator door open while the refrigerator is operating? a...
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