p43_051 - 51. (a) For the rst reaction Q1 = (mRa mPb mC )c2...

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51. (a) For the first reaction Q 1 =( m Ra m Pb m C ) c 2 = (223 . 01850 u 208 . 98107 u 14 . 00324 u)(931 . 5MeV / u) =3 1 . 8MeV , and for the second one Q 2 m Ra m Rn m He ) c 2 = (223 . 01850 u 219 . 00948 u 4 . 00260 u)(931 . / u) =5 . 98 MeV
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