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6. | How fast does a rocket have to move relative to an observer for its length to be contracted to 95% of its original length? | |
A. | 0.5 c | |
B. | 0.4 c | |
C. | 0.3 c | |
D. | 0.2 c | |
Answer: Option C | |
Explanation: | |
l = 0.95lo, v =? |
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