According to ground-based astronomers, a star close to the center of the Milky Way exploded 800 years
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According to ground-based astronomers, a star close to the center of the Milky Way exploded 800 years before another star located 2000 years from the first. How long then the second explosion occurred according to a rocket traveling towards the explosions at a velocity of 0.2c?
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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