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A proton and anti-proton are created by a photon with wavelength ? = 6.607 × 10-7nm....

A proton and anti-proton are created by a photon with wavelength ? = 6.607 × 10-7nm. What are the magnitude of the velocities of the newly created proton and anti-proton pair? Note, the mass of a proton/anti-proton is mp = 1.673 × 10-27kg = 938.3 (MeV/ c2) .

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