the mass of a particle is frequently expressed in units of MeV/c^2 3) The mass of a particle is frequently expressed in units of MeV/c?. You can do this for the cases aboveby just converting Joules to MeV to get the energy in MeV. The mass is just stated as that energy"over c-squared" rather than actually doing the division by (3x10*)².a) Rest mass for an electron in MeV/c2.b) Find the relativistic mass of the muon from the previous section in units of MeV/c².4) A photon is a massless particle that has energy and momentum.a) Using the relations above, what is the relation between total energy and momentum for thephoton?b) Find the numerical value of the momentum in kg m/s for a 1 MeV photon.c) Find the numerical value of the momentum in kg m/s of an electron of kinetic energy 1 MeV

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