Intensity of Light. The intensity I of light from a light bulb varies inversely as the
Chapter 2, Problem 35(choose chapter or problem)
Intensity of Light. The intensity I of light from a light bulb varies inversely as the square of the distance d from the bulb. Suppose that I is 90 W>m2 (watts per square meter) when the distance is 5 m. How much farther would it be to a point where the intensity is 40 W>m2 ?
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