Two fireworks explode at the same position on the 4th of July. A stationary observer notices that the time interval between the two events was 5.00 seconds. A second observer flies past the fireworks at a speed of 0.600c. What value does she obtain when she measures the time interval between the two explosions?
A. 8.33 s
B. 6.25 s
C. 4.00 s
D. 3.00 s
E. 5.00 s
Answer: B
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