P39_058 - 58(a The average de Broglie wavelength is avg = = = h = pavg h h hc = = 2mKavg 2m(3kT/2 2(mc2)kT 1240 eV nm 3(4(938 MeV(8.62 105 eV/K(300

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58. (a) The average de Broglie wavelength is λ avg = h p avg = h p 2 mK avg = h p 2 m (3 kT/ 2) = hc p 2( mc 2 ) kT = 1240 eV · nm p 3(4)(938 MeV)(8 . 62 × 10 5 eV / K)(300 K) =7 . 3 × 10 11 m=73pm . (b) The average separation is
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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