When an Electron and Its Anti-Particle,a Positron,collide,they Annihilate Each Other $\times$

question 74

Essay

When an electron and its anti-particle,a positron,collide,they annihilate each other.Calculate the energy released in this process,in J.(The positron mass is the same as the electron mass,namely 9.11 $\times$ 10^-31 kg. )

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