(a) How much time does it take light to travel from the moon to the earth, a...

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(a) How much time does it take light to travel from the moon to the earth, a distance of 384,000 km?
(b) Light from the star Sirius takes 8.61 years to reach the earth. What is the distance from earth to Sirius in kilometers?

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Physics

ISBN: 978-0077339685

2nd edition

Authors: Alan Giambattista, Betty Richardson, Robert Richardson

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Question Posted: Oct 18, 2010 04:53 AM

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(a) How much time does it take light to travel from the moon to the earth, a...

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