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04-11-2022
Physics

Answered

during a lunar mission, it is necessary to increase the speed of a spacecraft by 2.2 m/s when it is moving at 400 m/s relative to the moon. the speed of the exhaust products from the rocket engine is 1000 m/s relative to the spacecraft. what fraction of the initial mass of the spacecraft must be burned and ejected to accomplish the speed increase?

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