A 44-kg woman cheats on her diet and eats
a 680-Calorie (680 kcal) jelly doughnut for
breakfast.
(a) How many joules of energy are the equivalent of one jelly
doughnut?
J
(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.
stairs
(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?
stairs
A 44-kg woman cheats on her diet and eats a 680-Calorie (680 kcal) jelly doughnut for breakfast. (a) How many joules of
-
answerhappygod
- Site Admin
- Posts: 899604
- Joined: Mon Aug 02, 2021 8:13 am
A 44-kg woman cheats on her diet and eats a 680-Calorie (680 kcal) jelly doughnut for breakfast. (a) How many joules of
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!