harmoniebreeze harmoniebreeze

19-05-2017
Physics

contestada

If a star is 50 light-years away from earth, how long will it take light to travel from star to earth?

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DuxGinger DuxGinger

19-05-2017

50 Years.

A light-year is the distance light can travel in one year. Therefore, if light travels for 50 years, it will have gone 50 light-years away.

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