Relativistic formulas for time dilation, length
Chapter 26, Problem 7MCQ(choose chapter or problem)
Problem 7MCQ
Relativistic formulas for time dilation, length contraction, and mass are valid
(a) only for speeds less than 0.10c.
(b) only for speeds greater than 0.10c.
(c) only for speeds very close to c.
(d) for all speeds.
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