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It has been suggested that rotating cylinders about 20.0 mi long and 5.14 mi in diameter be placed in space and used as colonies. What

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It has been suggested that rotating cylinders about 20.0 mi long and 5.14 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth? rad/s

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