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Two galaxies on opposite ends of the universe are moving away from the Earth. Each has a velocity of 200,000 km/s relative to t...Asked by Norma
Two galaxies on opposite ends of the universe are moving away from the Earth. Each has a velocity of 200,000 km/s relative to the Earth. How fast would an observer in one of those galaxies see the other galaxy moving away? A.200,000 km/s B. between 300,000 and 400,000 km/s c. between 200,000 and 300,000 km/s D. 400,000 km/s