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April 18, 2015

April 18, 2015

Posted by **ziddi** on Wednesday, March 31, 2010 at 10:08am.

- physics -
**bobpursley**, Wednesday, March 31, 2010 at 10:25amExactly what is a "typical efficiency"? Is that a physics term? (Answer:NO)

Labels on candy bars are in food Calories, which is not your obselete physics term "calories". Look up the difference.

Now to answer your question (sort of). Disect it to understand. It assumes 100 percent efficiency

mgh=1000*470* 4.18 check the units.

h= 1000*470*4.18/((74*9.8)) which is plenty high. Now you are at your "typical efficiency" term.

One can "burn" off 470 Calories by about one hour on a stationary bike with moderate effort.

http://www.nutristrategy.com/activitylist.htm

Most of the energy consumed by the body goes to keeping the heart running, and the body warm.

- physics -
**ziddi**, Wednesday, March 31, 2010 at 10:40amtypical efficiency = .25= 25%

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