If the Total Energy of an Electron in an Accelerator

question 21

Multiple Choice

If the total energy of an electron in an accelerator is five times its rest energy,what is its speed? (c = 3.00 × 10⁸ m/s)

• A) 1.98 × 10⁸ m/s
• B) 2.94 × 10⁸ m/s
• C) 2.32 × 10⁸ m/s
• D) 2.90 × 10⁸ m/s

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