7. (III) The Earth is not a uniform sphere, but has regions of varyingdensity. Consider a simple model of the Earth divided into threeregions-inner core, outer core, and mantle. Each region istaken to have a unique constant density (the average density ofthat region in the real Earth):RegionRadius (km)Density (kg/m³)Inner Core0–122013,000Outer Core1220–348011,100Mantle3480–63804400(a) Use this model to predict the average density of the entireEarth. (b) If the radius of the Earth is 6380 km and its mass is5.98 × 1024 kg, determine the actual average density of the Earthand compare it (as a percent difference) with the one youdetermined in (a).

Answered: Image /qna-images/answer/10bac7aa-3b9e-4a11-b455-8727e6e509bf.jpg

(a) Use this model to predict the average density of the entire Earth. (b) If the radius of the Earth is 6380 km and its mass is 5.98 x 1024 kg, determine the actual average density of the Earth and compare it (as a percent difference) with the one you determined in (a).

(a) Use this model to predict the average density of the entire Earth. (b) If the radius of the Earth is 6380 km and its mass is 5.98 x 1024 kg, determine the actual average density of the Earth and compare it (as a percent difference) with the one you determined in (a).

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter9: Fluids And Solids

Section: Chapter Questions

Problem 78AP

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