An Electron Is Accelerated from Rest Through a Potential Difference

question 7

Multiple Choice

An electron is accelerated from rest through a potential difference of 1.02 MeV.If the rest energy of the electron is 0.51 MeV,how fast is the electron moving?

• A) 0.57 c
• B) 0.30 c
• C) 0.67 c
• D) 0.90 c
• E) 0.94 c

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