The Total Energy of a Moving Electron Is $0.758 \mathrm { MeV }$

question 122

Multiple Choice

The total energy of a moving electron is $0.758 \mathrm { MeV }$ What is the speed of the electron in terms of c? The rest mass energy of an electron is 0.511 MeV.

• A)0.739 c
• B)0.794 c
• C)0.306 c
• D)0.933 c

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