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OpenStudy (anonymous):
How fast must a neutron be travelling relative to a detector in order to have a measured kinetic energy that is equal to its rest energy? I know Ek = mc^2 - m0c^2 But if Ek = m0c^2, wouldn't the two terms cancel out from this equation? I am having trouble going about with it mathematically, and could use a few pointers if you guys don't mind helping out. Where m0 is the rest mass. m is the relativistic mass
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