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July 25, 2014

Homework Help: calculus

Posted by fati on Saturday, June 16, 2012 at 2:09am.

The beacon on a lighthouse makes one revolution every 20 seconds. The beacon is 300 feet from
the nearest point, P, on a straight shoreline. Find the rate at which the ray of light moves along
the shore at a point 200 feet from P.

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