1. At the end of a 15-min session on a stationary bike at the gym, the bike's display indicates that you have delivered 180 kJ of energy to the bike in form of work. Your heart monitor shows that you have burned-off 180 food calories. (a) How much energy has your body exchange with the surroundings? Think & Prepare 1. First identify the system and the surroundings. 2. Identify what quantities in the problem represent AE int Q and T along with their signs. 3. 1 food calorie = 1 kcal = 4 186 kJ kJ (Enter using the appropriate sign) (b) What physics law did you use in this problem? O Zeroth Law of Thermodynamics O First Law of Thermodynamics O Second Law of Thermodynamics

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1. At the end of a 15-min session on a stationary bike at the gym, the bike's display indicates that you
have delivered 180 kJ of energy to the bike in form of work. Your heart monitor shows that you have
burned-off 180 food calories.
(a) How much energy has your body exchange with the surroundings?
Think & Prepare
1. First identify the system and the surroundings.
2. Identify what quantities in the problem represent AE int Q and T along with their signs.
3. 1 food calorie = 1 kcal = 4 186 kJ
kJ (Enter using the appropriate sign)
(b) What physics law did you use in this problem?
O Zeroth Law of Thermodynamics
O First Law of Thermodynamics
O Second Law of Thermodynamics
Transcribed Image Text:1. At the end of a 15-min session on a stationary bike at the gym, the bike's display indicates that you have delivered 180 kJ of energy to the bike in form of work. Your heart monitor shows that you have burned-off 180 food calories. (a) How much energy has your body exchange with the surroundings? Think & Prepare 1. First identify the system and the surroundings. 2. Identify what quantities in the problem represent AE int Q and T along with their signs. 3. 1 food calorie = 1 kcal = 4 186 kJ kJ (Enter using the appropriate sign) (b) What physics law did you use in this problem? O Zeroth Law of Thermodynamics O First Law of Thermodynamics O Second Law of Thermodynamics
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