A Proton's Rest Mass Is 1

question 14

Multiple Choice

A proton's rest mass is 1.67 × 10−27 kg. Calculate its kinetic energy when it is accelerated to a speed of 0.80c.

• A)1.0 × 10−10 J
• B)1.5 × 10−10 J
• C)−2.0 × 10−10 J
• D)2.5 × 10−10 J
• E)7.5 × 10−10 J

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