Question
The intensity I of light from a light bulb varies inversely as the square of the distance d from the light bulb. Suppose I is
The intensity I of light from a light bulb varies inversely as the square of the distance d from the light bulb. Suppose I is 250 w/m2 when the distance is 7 m. How much farther would it be to a point where the intensity is 40 w/m2
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Introduction to graph theory
Authors: Douglas B. West
2nd edition
131437372, 978-0131437371
