Physics, 26.06.2019 15:30 destanybrunson
What process takes solid co2 from a solid to a gas? a) boiling b) melting c) sublimation d) vaporization
Answers: 1
Physics, 21.06.2019 19:10
What happens to light waves from a star as the star moves away from earth?
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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?
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Physics, 22.06.2019 04:00
What is the final velocity of the initial velocity of 25 and -50?
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Physics, 22.06.2019 05:10
A- a of 8.00 cm a of 34.0 nc. a , -, a of 25.0 nc is on of a of 15.0 cm .be toto aof ? a) b) c) j d) e)
Answers: 1
What process takes solid co2 from a solid to a gas? a) boiling b) melting c) sublimation d) vaporiz...
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