Our Milky Way galaxy is 100,000 ly in diameter. A spaceship crossing the galaxy measures the galaxys
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Our Milky Way galaxy is 100,000 ly in diameter. A spaceship crossing the galaxy measures the galaxy’s diameter to be a mere 1.0 ly.
a. What is the spacecraft’s speed, as a fraction of c, relative to the galaxy?
b. How long is the crossing time as measured in the galaxy’s reference frame?
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Related Book For
Physics for Scientists and Engineers A Strategic Approach with Modern Physics
ISBN: 978-0133942651
4th edition
Authors: Randall D. Knight
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