Transcribed Image Text: A 62-kg woman eats a 620 Calorie (620 kcal) jelly doughnut for breakfast. (a) How many joules of

Excerpt
Assume the height of a single stair is 15 cm. stairs (c) If the human body is only 27% efficient in converting chemical potential energy to mechanical energy, how many steps must the woman climb to work off her breakfast? stairs Need Help? Read It

Transcribed Image Text: A 62-kg woman eats a 620 Calorie (620 kcal) jelly doughnut for breakfast.
(a) How many joules of energy are the equivalent of one jelly doughnut?
(b) How many steps must the woman climb on a very tall stairway to change the gravitational potential energy of the
woman-Earth system by a value 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 27% efficient in converting chemical potential energy to mechanical energy, how many steps
must the woman climb to work off her breakfast?
stairs
Need Help?
Read It

Need your ASSIGNMENT done? Use our paper writing service to score better and meet your deadline.


Click Here to Make an Order Click Here to Hire a Writer