Answer: A piece of chocolate cake contains about 400
Chapter 9, Problem 9.95(choose chapter or problem)
A piece of chocolate cake contains about 400 Calories. A nutritional Calorie is equal to 1000 calories (thermochemical calories). How many 8-in-high steps must a 180-lb man climb to expend the 400 Cal from the piece of cake? See Exercise 15 for the formula for potential energy.
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