Physics, 20.07.2019 05:00 person73

Astronaut rachel leaves earth in a spaceship at a speed of 0.960c relative to an observer on earth. rachel's destination is a star system 14.4 light-years away (one light-year is the distance light travels in one year). according to rachel, how long does the trip take?

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Astronaut rachel leaves earth in a spaceship at a speed of 0.960c relative to an observer on earth....

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