Question

A cube has density p, when at rest. What is the density
of the cube when it moves with velocity v parallel to
one of its sides?
(a) P. (1 – v2/c2)1/2
(b) P. (1-v2/c2)-1/2
(C) P. (1 – v2/c2)-1 (d) P, (1 - v 2/c2)
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Answer 1

Answer:

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Answer 2

Answer:

(b) is the crct option

Explanation:

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