Solution: The nearest star to Earth is Proxima Centauri, 4.3
Chapter 36, Problem 36.72(choose chapter or problem)
The nearest star to Earth is Proxima Centauri, 4.3 lightyearsaway, (a) At what constant velocity must a spacecrafttravel from Earth if it is to reach the star in 4.6 years, asmeasured by travelers on the spacecraft? (b) How long doesthe trip take according to Earth observers?
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