An interstellar spaceship travels from the earth to a distant star system 12 light-years away (as measured

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An interstellar spaceship travels from the earth to a distant star system 12 light-years away (as measured in the earth’s frame). The trip takes 15 years as measured on the ship.

(a) What is the speed of the ship relative to the earth?

(b) When the ship arrives, it sends a signal to the earth. How long after the ship leaves the earth will it be before the earth receives the signal?

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Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

1st Edition

Authors: Edmund G. Seebauer, Robert L. Barry

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Question Posted: Nov 29, 2011 12:20 PM

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An interstellar spaceship travels from the earth to a distant star system 12 light-years away (as measured

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Fundamentals of Ethics for Scientists and Engineers

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