Joules of energy are equivalent of one jelly doughnut

Reference no: EM13548418

A 59-kg woman cheats on her diet and eats a 457-Calorie (457 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 27% efficient in converting chemical energy to mechanical energy, how many stairs must the woman climb to work off her breakfast? =________stairs

Reference no: EM13548418

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Joules of energy are equivalent of one jelly doughnut : A 59-kg woman cheats on her diet and eats a 457-Calorie (457 kcal) jelly doughnut for breakfast. How many joules of energy are the equivalent of one jelly doughnut? =______ J How many stairs must the woman climb to perform an amount of mechanical ..

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