numericheat7-18

numericheat7-18 - TYPICAL NUMERIC QUESTIONS FOR PHYSICS I...

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TYPICAL NUMERIC QUESTIONS FOR PHYSICS I REGULAR QUESTIONS TAKEN FROM CUTNELL AND JOHNSON HEAT (4) Science concepts. The student knows the laws of thermodynamics. The student is expected to: (A) analyze and explain everyday examples that illustrate the laws of thermodynamics; and (B) evaluate different methods of heat energy transfer that result in an increasing amount of disorder. 1. A soft drink manufacturer claims that a new diet drink is "low Joule." The label indicates the available energy is 6300 J. What is the equivalent of this energy in Calories (1 Calorie = 1000 cal)? A) 0.015 Cal B) 0.48 Cal C) 1.0 Cal D) 1.5 Cal E) 4.8 Cal 2. A 2.00-kg metal object requires 5.02 × 10 3 J of heat to raise its temperature from 20.0 °C to 40.0 °C. What is the specific heat capacity of the metal? A) 63.0 J/(kg • C°) D) 502 J/(kg • C°) B) 126 J/(kg • C°) E) 1.00 × 10 3 J/(kg • C°) C) 251 J/(kg • C°) 3. Two spheres, labeled A and B have identical masses, but are made different substances. The specific heat capacity of sphere A is 440 J/kg •
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This note was uploaded on 03/14/2011 for the course PHYSICS 105 taught by Professor Kruse,m during the Spring '08 term at Duke.

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numericheat7-18 - TYPICAL NUMERIC QUESTIONS FOR PHYSICS I...

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