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2. (Reif 7.19)A gas of molecules, each of mass m, is in thermal equilibrium at the absolute
temperature T. Denote the velocity of a molecule by v, its three Cartesian components by v, Vy,
and v, and its speed. What are the following mean values:
(a) Vx
(d) vv,
(b) v
(e) (v, +bv, )
(c) v'v,
(f) vv
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