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April 18, 2014

Homework Help: math

Posted by Suzie on Friday, February 24, 2012 at 5:47pm.

after passing therough a material t centimeters thick, the intensity I(t) of a light beam is given by I(t) =(4^-ct)Io, where Io is the initial intensity and c is a constant called the absorption factor. Ocean water absorbs light with an absorption factor of c= .0101. at what depth will a beam of light be reduced to 50% of its initial intensity? 2% of its initial intensity?

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