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OpenStudy (unklerhaukus):
The power of an aircraft engine is proportional to the square of its length and the cube of the speed of an aeroplane model. What percent- age increase in speed will result from a 13 % increase in power and a 2 % increase in length of the aircraft.
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OpenStudy (rulnick):
1.13^(1/3) 1.02^(2/3) = 1.055 (rounded), so about a 5.5% increase in speed.
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