Posted by admin | Posted in Candles | Posted on 05-02-2009
Tags: alternativeprocessphotography, electronics, equipment, lighting
algebra word problem?
The intensity i of light (measured in foot-Candles) varies inversely with the square of the distance from the bulb. suppose that the intensity of a 100-watt bulb at a distance of 2 meters is 0.075 foot-Candle. determine the intensity of the bulb at 5 meters.
i really need help with this problem. its the only one from my homework i dont get
0.075:1/2² = x:1/5²
x=(1/5² * 0.075)/(1/2²) = 0.075 * 2²/5² = 0.075 * 4/25 = 0.012
Bob Dylan – Subterranean Homesick Blues (w/ lyrics)
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