A spaceship in distress sends out two escape pods in opposite directions. One travels at a speed
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A spaceship in distress sends out two escape pods in opposite directions. One travels at a speed v1 = +0.7c in one direction, and the other travels at a speed v2 = - 0.80c in the other direction, as observed from the spaceship. What speed does the first escape pod measure for the second escape pod?
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