If you mix food in a blender, the electric motor does work on the system, which consists of the food inside the container. This work can noticeably warm up the food. Suppose the blender motor runs at a power of 250 W for 40 s. During this time, 2000 J of heat flow from the now-warmer food to its cooler surroundings. Match the answers with questions. (Hint: Example 11.12) v W- work done on the system (food) A. 2000 J v Q- Heat into or out of the system (food) B. 8000 J v AEth - Change in thermal energy of the system (food) C.OJ D. -10,000 J E. -8000 J F. -2000 J G. 10,000 J

If you mix food in a blender, the electric motor does work on the system, which consists of the food inside the container. This work can noticeably warm up the food. Suppose the blender motor runs at a power of 250 W for 40 s. During this time, 2000 J of heat flow from the now-warmer food to its cooler surroundings. Match the answers with questions. (Hint: Example 11.12) v W- work done on the system (food) A. 2000 J v Q- Heat into or out of the system (food) B. 8000 J v AEth - Change in thermal energy of the system (food) C.OJ D. -10,000 J E. -8000 J F. -2000 J G. 10,000 J

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

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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