598 Applications of Nuclear Physics*P45.7(a)The initial mass is 1 007 82511 009 30612 017 131...u u+=. The final mass is3 4 002 60312 007 809..ubg=. The rest mass annihilated is ∆m=0009322.u. The energycreated is Qmc==FHGIKJ=∆20 009 3228 68u931.5 MeV1 uMeV .(b)The proton and the boron nucleus have positive charges. The colliding particles must haveenough kinetic energy to approach very closely in spite of their electric repulsion.P45.8If the electrical power output of 1 000 MW is 40.0% of the power derived from fission reactions, thepower output of the fission process is10002 50 108 64 102 16 109414MW0.400JssdJd=××=×.ej.The number of fissions per day is 216 101110674 101419241××FHGIKJ×FHGIKJ−−fission200 10 eVeV1.60Jd6.This also is the number of 235U nuclei used, so the mass of 235U used per day is235602 10263 1026324233..××FHGIKJ=nuclei dgmolnuclei molgdkgd.In contrast, a coal-burning steam plant producing the same electrical power uses more than6106×kg d of coal.P45.9
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