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April 19, 2014

Homework Help: Physics (please help!)

Posted by Anonymous on Monday, August 5, 2013 at 8:58pm.

1000 dust particles are trapped on a surface. There are two energy levels the particles can be in: absorbed on the surface in a zero energy state, or excited with energy E1. At a certain temperature T0, the particles are in thermal equilibrium, and 20 % of the particles are in the excited state. What is the ratio of the total energy of the dust particles to kT0?

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