Physics, 10.07.2019 15:30 ayoismeisalex
Arock can be broken down into different kinds of substances by physical processes no chemical reactions are needed to separate different parts of a rock into pure substances this is because a rock is a
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What is the order of the moon, earth, and sun in a lunar eclipse and a solar eclipse?
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Atank is filled with an ideal gas at 400 k and pressure of 1.00 atm . part a the tank is heated until the pressure of the gas in the tank doubles. what is the temperature of the gas?
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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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Arock can be broken down into different kinds of substances by physical processes no chemical reacti...
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