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A typical candy bar weighs about 2 oz (1.00 oz 28.4 g).
Chapter 6, Problem 6.103(choose chapter or problem)
A typical candy bar weighs about 2 oz (1.00 oz 28.4 g). (a) Assuming that a candy bar is 100% sugar and that 1.0 g of sugar is equivalent to about 4.0 Calories of energy, calculate the energy (in kJ) contained in a typical candy bar. (b) Assuming that your mass is 58 kg and you convert chemical potential energy to work with 100% efficiency, how high would you have to climb to work off the energy in a candy bar? (Potential energy mass g height, where g 9.8 m/s2 .) (c) Why is your actual conversion of potential energy to work less than 100% efficient?
Questions & Answers
QUESTION:
A typical candy bar weighs about 2 oz (1.00 oz 28.4 g). (a) Assuming that a candy bar is 100% sugar and that 1.0 g of sugar is equivalent to about 4.0 Calories of energy, calculate the energy (in kJ) contained in a typical candy bar. (b) Assuming that your mass is 58 kg and you convert chemical potential energy to work with 100% efficiency, how high would you have to climb to work off the energy in a candy bar? (Potential energy mass g height, where g 9.8 m/s2 .) (c) Why is your actual conversion of potential energy to work less than 100% efficient?
ANSWER:Step 1 of 4
(a)
Given,
