At a speed of (0.90 c), a spaceship travels to a star that is 9.0 ly distant.

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At a speed of \(0.90 c\), a spaceship travels to a star that is 9.0 ly distant.

a. According to a scientist on earth, how long does the trip take?

b. According to a scientist on the spaceship, how long does the trip take?

c. According to the scientist on the spaceship, what is the distance traveled during the trip?

d. At what speed do observers on the spaceship see the star approaching them?

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College Physics A Strategic Approach

ISBN: 9780321907240

3rd Edition

Authors: Randall D. Knight, Brian Jones, Stuart Field

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