Physics, 12.12.2019 04:31 hilljade45
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 ly. what is the speed of the spaceship relative to the galaxy? and how long is the crossing time as measured in the galaxy's reference frame?
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Our milky way galaxy is 100,000 ly in diameter. a spaceship crossing the galaxy measures the galaxy'...
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