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Posted by on Wednesday, October 3, 2012 at 2:41pm.

The radius of a merry-go-round is 7 meters, and it takes 12 seconds to make a complete revolution. What is the speed of an atom on the outer rim?

  • physics - , Wednesday, October 3, 2012 at 3:07pm

    v=2πR/t=2•π•7/12=3.67 m/s.

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