Alpha Centauri, the binary star closest to our solar system, is about 4.5 ly away. If a spaceship traveled this distance with a constant speed of 0.80c relative to Earth, how much time would elapse on an Earth-based clock?
Added by John H.
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5 \) light-years (ly) - Speed of the spaceship, \( v = 0.80c \) (where \( c \) is the speed of light) Show more…
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