Water is unique in that it exists in all three states on Earth. Which statement best describes what happens to the energy of the particles when water vapor begins to cool?
A. The average potential energy decreases.
B. The average kinetic energy decreases.
C. The average potential energy remains the same.
D. The average kinetic energy remains the same.
Answers: 1
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Identify the arrows that show the correct direction of heat transfer. 66°f 112°f 98°f
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The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e
Answers: 1
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