An Electron Has a Rest Energy of 0

question 52

Multiple Choice

An electron has a rest energy of 0.511 MeV. At what speed would its kinetic energy equal 1.022 MeV?

• A) 0.866 c
• B) 0.943 c
• C) 0.888 c
• D) 0.971 c
• E) 0.500 c

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