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December 21, 2014

December 21, 2014

Posted by **Richard** on Friday, October 19, 2012 at 2:55pm.

- Physics -
**Steve**, Friday, October 19, 2012 at 3:10pmcircumferences vary in the same ratio as the radii.

since 40/5 = 8,

the 5" wheel rotates 8 times for every rotation of the 40" wheel.

extra credit: do they turn in the same direction?

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