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Physics, 15.03.2022 01:10 longoriafaithe09

Though most of the galaxies in the universe are receding from Earth, some are observed to be moving toward us. Suppose a galaxy is moving toward Earth with a speed of 3485 km/s and emits light with a frequency of 4.000 X 1014 Hz. What is the frequency of the light when it reaches Earth?

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