The nearest star to earth is 43 light years away how long


The nearest star to Earth is 4.3 light years away.

(a) At what constant velocity must a spacecraft travel from Earth if itis to reach the star in 4.0 years, as measured by travelers on thespacecraft?

(b) How long does the trip take according toEarth observers?

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Physics: The nearest star to earth is 43 light years away how long
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