A Proton in a Certain Particle Accelerator Has a Kinetic

question 34

Multiple Choice

A proton in a certain particle accelerator has a kinetic energy that is equal to its rest energy. What is the momentum of the proton as measured by a physicist working with the accelerator? (c = 3.00 × 10⁸ m/s, mproton = 1.67 × 10^-27 kg)

• A) 2.51 × 10^-19 kg ∙ m/s
• B) 2.89 × 10^-19 kg ∙ m/s
• C) 4.34 × 10^-19 kg ∙ m/s
• D) 5.01 × 10^-19 kg ∙ m/s
• E) 8.68 × 10^-19 kg ∙ m/s

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