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How many times does the relativistic mas...

How many times does the relativistic mass of a particle whose velocity differs from the velocity of light by `0.010%` exceed its rest mass?

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`m=(m_0)/(sqrt(1-beta^2))`
Forv `beta~~1`, `m/m_0~=(1)/(sqrt(2(1-beta)))=(1)/(sqrt(2eta))`
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