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? (1 point)
Responses
between 300,000 and 400,000 km/s
between 300,000 and 400,000 km/s
400,000 km/s
400,000 km/s
between 200,000 and 300,000 km/s
between 200,000 and 300,000 km/s
200,000 km/s
200,000 km/s