Mathematics, 05.12.2020 08:30 blakestuhan

The intensity of light measured in foot-candles varies inversely with the square of the distance from the light source. Suppose the intensity of a light bulb is 0.02 foot-candles at a distance of 4 meters. Find the intensity level, I, at 5 meters.

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The intensity of light measured in foot-candles varies inversely with the square of the distance fro...