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It has been suggested that rotating cylinders about 1 2 . 0 mi long and 6 . 0 7 mi in diameter be placed in

It has been suggested that rotating cylinders about

12.0

mi long and

6.07

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?

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