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OpenStudy (anonymous):
If a light intensity 67 foot-candles at 15 feet. Find the light intensity at 5 feet
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OpenStudy (anonymous):
intensity is inversely proportional to (distance)^2 67/intensity = (5/15)^2
OpenStudy (anonymous):
is 22.333 the right answer?
OpenStudy (anonymous):
No I worked it out and just got 603 which was correct I did 67=k/15^2 k=15075 15075*1/5^2 ANSWER=603
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