A n-meson is a particle that decays into a muon and a massless particle. The n-meson has a rest mass energy of 139.6 MeV and the muon has a rest mass energy 105.7 MeV. Suppose the n-meson is at rest and all of the missing mass goes into the muon's kinetic energy. How fast will the muon move?
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A n-meson is a particle that decays into a muon and a massless particle. The n-meson has a rest mass...
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