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
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
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![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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F91ebeefb-4552-4ee2-a18c-1232c59f100f%2F4f803891-e68b-4bbe-aaaf-cf6a421960bb%2Fryjcv9m_processed.jpeg&w=3840&q=75)
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
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