Physics
Physics, 12.08.2020 08:01, RainaJade6004

The frequency of light emitted from hydrogen present in the Andromeda galaxy has been found to be 0.10% higher than that from hydrogen measured on Earth. Is this galaxy approaching or receding from the Earth, and at what speed?

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The frequency of light emitted from hydrogen present in the Andromeda galaxy has been found to be 0....

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