Two spaceships A and B are exploring a new planet.
Chapter , Problem 13(choose chapter or problem)
Two spaceships A and B are exploring a new planet. Relative to this planet, spaceship A has a speed of 0.60c, and spaceship B has a speed of 0.80c. What is the ratio DA/DB of the values for the planets diameter that each spaceship measures in a direction that is parallel to its motion?
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