What is the speed of a proton if its mass is twice its rest mass?
A)0.25c
B)0.50c
C)0.68c
D)0.73c
E)0.87c

Name: What is the speed of a proton if its mass is twice its rest mass? A)0.25c B)0.50c C)0.68c D)0.73c E)0.87c
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Quizplus · Accepted Answer

When a particle's mass is twice its rest mass, it is moving at a speed where its relativistic mass is twice its rest mass. This occurs at approximately 0.87c, according to the relativistic mass formula.

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