Question: An electronpositron pair is produced by a photon with an energy of 11 MeV. (a) Name two quantities this process must conserve. (b) What is

An electron–positron pair is produced by a photon with an energy of 11 MeV. 

(a) Name two quantities this process must conserve. 

(b) What is the total kinetic energy of the electron and positron combined? 

(c) What is the total momentum of the electron and positron combined?

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