(7%) Problem 9: Following vigorous exercise, the internal body temperature of a 68-kg person is 40.0C....

Transcribed Image Text:

(7%) Problem 9: Following vigorous exercise, the internal body temperature of a 68-kg person is 40.0C. Substances Specific heat (c) Solids J/kg.C kcal/kg.C Aluminum Concrete 900 0.215 840 0.20 Copper 387 0.0924 Glass 840 0.20 Human Body (37C) 3500 0.83 Iron, steel 452 0.108 Liquids Water Mercury 4186 1.000 139 0.0333 At what rate, in watts, must the person transfer thermal energy to reduce the body temperature to 37.0C in 30.0 minutes, assuming the body continues to produce energy at the rate of 150 W? P = W sin cos() tan cotan() asin() acos() atan) acotan() sinh cosh() tanh() cotanh() Degrees Radians ()7 E4 89 HOME 5 6 / 1 2 3 0 END VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback. Grade Summary Deductions Potential Submissions 0% 100% Attempts remaining: 1 (87% per attempt) detailed view (7%) Problem 9: Following vigorous exercise, the internal body temperature of a 68-kg person is 40.0C. Substances Specific heat (c) Solids J/kg.C kcal/kg.C Aluminum Concrete 900 0.215 840 0.20 Copper 387 0.0924 Glass 840 0.20 Human Body (37C) 3500 0.83 Iron, steel 452 0.108 Liquids Water Mercury 4186 1.000 139 0.0333 At what rate, in watts, must the person transfer thermal energy to reduce the body temperature to 37.0C in 30.0 minutes, assuming the body continues to produce energy at the rate of 150 W? P = W sin cos() tan cotan() asin() acos() atan) acotan() sinh cosh() tanh() cotanh() Degrees Radians ()7 E4 89 HOME 5 6 / 1 2 3 0 END VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback. Grade Summary Deductions Potential Submissions 0% 100% Attempts remaining: 1 (87% per attempt) detailed view