Thursday

November 20, 2014

November 20, 2014

Posted by **cat** on Monday, December 3, 2012 at 2:26pm.

(c) If the human body is only 24% efficient in converting chemical energy to mechanical energy, how many stairs must the woman climb to work off her breakfast?

I got 24075.32468 stairs to perform an amount of mechanical work equivalent to the food in one jelly doughnut (which is correct). I assumed that I would just multiply that number by 0.76 (100%-24%) and then add my answer to 24075 stairs, but that was wrong. I then tried the 24% but that was wrong to. What do I do?

- college physics -
**Anonymous**, Sunday, January 20, 2013 at 8:45pmpencil in water is shown. determine the angle theta about which the pencil is bent?

**Answer this Question**

**Related Questions**

chemistry - 49-kg woman cheats on her diet and eats a 582-Calorie (582 kcal) ...

physics - A 91 kg student eats a 200 Calorie doughnut. To “burn it off”, he ...

Physics - A 53 kg student eats a 200 Calorie doughnut. To “burn it off”, he ...

GEOMETRY/PROP 2 - 72% of employees bring their children to day-care centers ...

Physics - A(n) 80.0-kg student eats a 160-Calorie doughnut. To burn-it-off, he ...

general chemistry. - The nutritional calorie (Calorie) is equivalent to 1 kcal. ...

statistics - M&M plain candies have weights that are normally distrbuted with a ...

Chemistry - A 0.60 g sample consisting of only CaC2O4 & MgC2O4 is heated at ...

math - if jay eats 1/3 of jelly beans and jack 1/4 of the jelly bean leveing ...

statistics - A researcher was interested in assessing the effectiveness of the ...