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Suppose a Clock at Rest Measures 20 S for a Task.The

Question 5

Multiple Choice

Suppose a clock at rest measures 20 s for a task.The speed of the clock that would measure 10 s for the same task is

A) 0.22 c.
B) 0.59 c.
C) 0.69 c.
D) 0.87 c.

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