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Physics, 22.06.2019 13:20
Arrange the images in order to show how lake-effect snow occurs.
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What does si stand for,when referring to a system of measurement
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Physics, 22.06.2019 19:30
A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
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What is the purpose of mucilage in the spaces around the cells of hornworts? why is this important?...
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