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
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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
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