An astronaut sitting at radius 470m on the inner ring of a, Ask an Expert

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An astronaut sitting at radius 47.0m on the inner ring of a space station moves a distance of 5.0m along a circular arc as the station rotates.

A.) Over what distance does another astronaut at the radius 215.0m on the outer ring move in the same time?

B.) Over what angle, in degrees, did the space station rotate in this period?

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