ch37-p041 - 41. (a) The work-kinetic energy theorem applies...

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41. (a) The work-kinetic energy theorem applies as well to relativistic physics as to Newtonian; the only difference is the specific formula for kinetic energy. Thus, we use W = K where K = m e c 2 ( γ – 1) (Eq. 37-52), and m e c 2 = 511 keV = 0.511 MeV (Table 37-3). Noting that K = m e c 2 ( f i ), we obtain () 2 22 2 2 11 1 1 511keV 1 0.19 1 0.18 0.996 keV 1.0 keV. e fi WK m c ββ ⎛⎞ =∆ = =
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