Consider a galaxy which is 100 million light-years away. Calculate its speed (in km/s), assuming that the Hubble constant is 22 km/sec/million light-years. Enter your answer in the blank (numbers only - no units!).
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Expert's answer
2018-01-25T13:55:07-0500
The Hubble law states that v=Hd Thus v=22 km/(sec/million ly)×100 million ly =2200 km/sec
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