A space traveler moving at a speed of 0.70c with respect to the earth makes a trip

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A space traveler moving at a speed of 0.70c with respect to the earth makes a trip to a distant star that is stationary relative to the earth. He measures the length of this trip to be 6.5 light-years. What would be the length of this same trip (in light-years) as measured by a traveler moving at a speed of 0.90c with respect to the earth?


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Physics

ISBN: 978-0470879528

9th edition

Authors: John D. Cutnell, Kenneth W. Johnson

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