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Asked by Ashley

If the intensity of a lightbulb is 45w/m^2 at a distance of 8m, then what is the intensity of it at a distance of 3m?
10 years ago

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Answered by Steve
45 * (8/3)^2
10 years ago
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If the intensity of a lightbulb is 45w/m^2 at a distance of 8m, then what is the intensity of it at a distance of 3m?

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