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April 20, 2014

Homework Help: Physics

Posted by Seth on Tuesday, April 5, 2011 at 4:07pm.

The useful power output of Bryan Allen, who flew a human-powered airplane across the English Channel on June 12th, 1979, was about 350 W. The propellor of the airplane was driven by the pilot's legs, using a bicycle-tyoed mechanism. Using the efficiency for legs (20%), calculate the food energy he needed for the 2.5-hour trip.

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