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Physics, 04.11.2021 18:20 Nicolegrove7927
If a galaxy moving away from the Earth has a speed of 1000 km/s and emits 656 nm light characteristic of hydrogen (the most common element in the universe). What wavelength would we observe on the Earth
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If a galaxy moving away from the Earth has a speed of 1000 km/s and emits 656 nm light characteristi...
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