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

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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Question

Physics 120
Instructor: Dr. Gheith, M.
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 10-2 m². The mass of the lasagna is 0.25 kg, and its specific heat capacity
is 3400 J/(kg.Cº). The temperature rises by 80.0 C° in 7.0 minutes. What is the intensity of the microwaves in
the oven?

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