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September 30, 2014

September 30, 2014

Posted by **Allie** on Friday, December 2, 2011 at 8:32pm.

I know the answer to the first part is

10.4%

but i'm not sure how to find this second part...

If your actual efficiency is 0.20, how many kcal did you really burn?

___________kcal

- Physics -
**drwls**, Friday, December 2, 2011 at 8:40pmTo have an efficiency of 20% and to have done the same amount of work, yoou need to have burned fewer kcal, by a ratio of 10.4/20. That makes 359 kcal

- Physics -
**Shawn**, Sunday, December 4, 2011 at 7:16pmHow did you get the first part?

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