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Convert each of the following MeV/c2 masses into kilograms: a) The mass of an electron or...

Convert each of the following MeV/c2 masses into kilograms:

a) The mass of an electron or of a positron is 0.511 MeV/c2

b) The mass of a proton or of a antiprton is 938.3 MeV/c2

c) The mass of a positive pion or of a negative pion (antipion) is 139.6 MeV/c2

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