Physics, 09.11.2019 10:31 dontcareanyonemo
How does radiation transfer thermal energy from the sun to earth?
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Physics, 21.06.2019 22:10, smiley0326
Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley
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Physics, 21.06.2019 23:00, hunterdylan01
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
Physics, 22.06.2019 08:00, cia196785920
If a balloon is taken outside on a very cold day, what will occur?
Answers: 1
How does radiation transfer thermal energy from the sun to earth?...
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