The intensity I of light from a light bulb varies inversely as the square of the distance d from the light bulb. Suppose l is 640 w/m2 when the distance is 8 m. How much farther would it be to a point where the intensity is 250 w/m2? It would be meters farther. (Simplify your answer.)
The intensity I of light from a light bulb varies inversely as the square of the distance d from the light bulb. Suppose l is 640 w/m2 when the distance is 8 m. How much farther would it be to a point where the intensity is 250 w/m2? It would be meters farther. (Simplify your answer.)
Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter8: Rational Expressions And Equations
Section8.9: Use Direct And Inverse Variation
Problem 506E: The volume of a gas in a container varies inversely as the pressure on the gas. If a container of...
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