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59. Since the electron has the maximum possible kinetic energy, no neutrino is emitted. Since momentum is conserved, the momentum of the electron and the momentum of the residual sulfur nucleus are equal in magnitude and opposite in direction. If p e is the momentum of the electron and p S is the momentum of the sulfur nucleus, then p S = – p e . The kinetic energy K S of the sulfur nucleus is 22 /2 SS Se S KpMpM == , where M S is the mass of the sulfur nucleus. Now, the electron’s kinetic energy
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