The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. If two light sources, one three times as strong as the other, are placed 12 ft apart, where should an object be placed on the line between the sources so as to receive the least illumination?
Give your answer as the distance, in feet, between the object and the strongest light source.
2007-05-13
15:28:51
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1 answers
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asked by
miss-whatever1225
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in
Mathematics