Multiple Choice
If astronauts could travel at v = 0.90c,we on Earth would say it takes (4.2/0.90) = 4.7 years to reach Alpha Centauri,4.2 lightyears away.The astronauts disagree.How much time passes on the astronaut's clocks?
A) 2.0 years
B) 2.4 years
C) 1.4 years
D) 3.0 years
Correct Answer:
Verified
Correct Answer:
Verified
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