ch38-p072 - 72. (a) The average kinetic energy is K= c hb g...

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72. (a) The average kinetic energy is Kk T == × = × × −− 3 2 3 2 138 10 300 6 21 10 23 21 .. . J / K K J = 3.88 10 eV 2 ch bg (b) The de Broglie wavelength is
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