The weight of an object varies inversely as the square of its distance from the center of the earth. If an object 8,000 miles from the center of the earth weighs 90 pounds, find its weight when it is 12,000 miles from the center of the earth.
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W1/W2 = (R2*R2)/(R1*R1)
=>90/W2 = (12000*12000)/(8000*8000)
=> W2 = 40 pound
Assume we ...
Application Ratio and Proportion Word Problems are investigated.