A Proton,which Has a Mass of 1

question 94

Multiple Choice

A proton,which has a mass of 1.67 × 10^-27, is moving at 0.80c relative to the laboratory.What does a physicist in that lab measure for its momentum? (c = 3.0 × 10⁸ m/s)

• A)4.0 × 10^-19 kg ∙ m/s
• B)4.4 × 10^-19 kg ∙ m/s
• C)5.0 × 10^-19 kg ∙ m/s
• D)5.8 × 10^-19 kg ∙ m/s
• E)6.7 × 10^-19 kg ∙ m/s

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