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12. Two spaceships leave Earth in opposite directions, each with a speed of 0.70 c with...

12. Two spaceships leave Earth in opposite directions, each with a speed of 0.70 c with respect to Earth.

Part A What are the velocities of spaceship 1 relative to spaceship 2 and spaceship 2 relative to spaceship 1? Take the positive direction to be the direction of motion of spaceship 1. Express your answers using two significant figures.

Enter your answers numerically separated by a comma. v12, v21 = ??? ⋅c

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