Exercise No 11: A dish of lasagna is being heated in a microwave oven. The effective area of the lasagna that is exposed to the microwave is 1.6 x 102 m². The mass of the lasagna is 0.25 kg, and its specific heat capacity is 3400 J/(kg.C°). The temperature rises by 80.0 C° in 7.0 minutes. What is the intensity of the microwaves in the oven?

Exercise No 11: A dish of lasagna is being heated in a microwave oven. The effective area of the lasagna that is exposed to the microwave is 1.6 x 102 m². The mass of the lasagna is 0.25 kg, and its specific heat capacity is 3400 J/(kg.C°). The temperature rises by 80.0 C° in 7.0 minutes. What is the intensity of the microwaves in the oven?

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter11: Energy In Thermal Processes

Section: Chapter Questions

Problem 9WUE: A granite ball of radius 2.00 m and emissivity 0.450 is heated to 135C. (a) Convert the given...

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