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a space station is a hollow cylinder of radius of 440m, that rotates to stimulate gravity by its centripetal acceleration. The astronants live at the radius 440m from the center, with their heads pointing inward and thier feet outward.

A. what speed should the rotation give the astronants so they feel like they are in artificial gravity of strength "2.5g" (2.5 X gravity on earth)?

B. find the period of the rotation in seconds.

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