2) if you were carefully watching this planet during the entire orbit, would the speed of the
p...
Physics, 10.09.2019 06:20 sydneip2394
2) if you were carefully watching this planet during the entire orbit, would the speed of the
planet be increasing, decreasing, or staying the same? how do you know?
Answers: 3
Physics, 21.06.2019 23:00
Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?
Answers: 1
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If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =
Answers: 1
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From the perspective of an employee that effective channeling of work related information and concerns
Answers: 1
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Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
Answers: 1
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