problem39_04

problem39_04 - 39.4: a) E b) K hc (4.136 10 15 eV s) (3.00...

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39.4: a) keV. 2 . 6 m) 10 20 . 0 ( ) s m 10 00 . 3 ( s) eV 10 136 . 4 ( λ 9 8 15 = × × × = = - - hc E b) kg) 10 11 . 9 ( 2 )) m 10 20 . 0 ( ) s J 10 626 . 6 (( 2 ) λ ( 2 31 2 9 34 2 2 - - - × × × = = = m h m p K eV. 37 J 10 0 . 6 18 = × = - Note that the kinetic energy found this way is much smaller than the rest energy, so the nonrelativistic approximation is appropriate. c) = × = × ×
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