Physics
Physics, 11.10.2019 15:30, Hfruit

The sunlight shines behind they raining cloud. what role does the sun play in the formation of rain? why?

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Physics, 21.06.2019 17:10, emmafrye1
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Physics, 21.06.2019 22:30, ceceshelby646
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
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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?
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Physics, 22.06.2019 04:50, od3008
*drag each tile to the correct location in the sequence* the table shows chronological events in the life of our sun, a medium-sized star. place the missing events into the correct rows of the table.
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The sunlight shines behind they raining cloud. what role does the sun play in the formation of rain?...

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