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Lect14-ch13_2

# Lect14-ch13_2 - L14Ch13 Spring 2004 PHY 2053C College...

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1 1 Spring 2004 PHY 2053C: College Physics A Today: Temperature and Kinematic Theory of Gas Temperature What are we a c tua ll y measur i ng when we measure temperature ? Kinematic Theory of Gas: Therma l Expans on Idea Gas Law K net Gas Theory \\ Mot , For e s, Energy Heat Wave s Dr. David M. Lind Dr. Kun Yang Dr. David Van Winkle L14—Ch13 1 Criteria for Stability Generally: If center of mass is below the turning pivot (support), equilibrium is almost always stable . If center of mass is above , it should be directly above the area of contact in order to be stable. Mission Impossible 1

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2 1 demo: Balancing Torques : Bicycle Gearing Longest lever arm gives the greatest mechanical advantage largest chain-ring on front coupled to smallest chain-ring on back provides the most torque per force massive hill climbing smallest chain-ring on front coupled to largest chain-ring on back provides the least torque torque per force (but highest speed) flat-out sprinting Fr sin 1 Temperature, Heat, & Thermodynamics: Introduction So f ar we have l ooked at propert i es o ma c ro s op obje ts .
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Lect14-ch13_2 - L14Ch13 Spring 2004 PHY 2053C College...

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