If the Total Energy of an Electron in an Accelerator

question 31

Multiple Choice

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

• A)1.98 x 10⁸ m/s
• B)2.32 x 10⁸ m/s
• C)2.90 x 10⁸ m/s
• D)2.99 x 10⁸ m/s

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