A $\backslash (52-\backslash$mathrm$\{$kg$\}\backslash )$ woman cheats on her diet and eats a $715-$Calorie $(715$ kcal $)$ jelly doughnut for breakfast.

$($a$)$ How many foules of energy are the equivalent of one jelly doughnut?

$($b$)$ How many stairs must the woman climb to perform an amount of mechanical work equivalent to the food energy in one jelly doughnut? Assume the height of a single stair is $15$ cm $.$

I stairs

$($c$)$ If the human body is only $\backslash (22\backslash \%\backslash )$ efficient in converting chemical energy to mechanical energy, how many stairs must the woman climb to work off her breakfast?

$178$ x

Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. stairs