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15-03-2021
Mathematics

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the intensity l of light from a light bulb measured in watts per square meter (w/m^2) varies inversly as the square of the distance d from the light bulb. suppose l is 65 w/m^2 when the distance is 3 m. find the intensity when the distance from the light is bulb is 2m away.

Respuesta :

15-03-2021

Answer:

Step-by-step explanation:

I = k/d^2

65 = k/3^2

k = 585

I = 585/d^2

When d=2 meters, I = 146.25 watts/m^2

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