Mathematics, 01.04.2021 07:20 ks970065
The illumination (in luxes) of a surface varies inversely with the square of the distance (in meters) from the light source to the surface. A light 15 meters from the surface registers 3 luxes. What would it measure 38 meters form the light surface?
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The illumination (in luxes) of a surface varies inversely with the square of the distance (in meters...
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