Solve. See Example 7.The intensity of light (in
Chapter 6, Problem 43(choose chapter or problem)
Solve. See Example 7.The intensity of light (in foot-candles) varies inversely as thesquare of x, the distance in feet from the light source. Theintensity of light 2 feet from the source is 80 foot-candles.How far away is the source if the intensity of light is 5 footcandles?
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