Consider two iron spheres, each of diameter 295 mm, which are just touching. At what distance r from the center of the earth will the force of mutual attraction between the contacting spheres be equal to the force exerted by the earth on one of the spheres? Answer: r = i (107)km

Consider two iron spheres, each of diameter 295 mm, which are just touching. At what distance r from the center of the earth will the force of mutual attraction between the contacting spheres be equal to the force exerted by the earth on one of the spheres? Answer: r = i (107)km

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.15P: Two 12-kg spheres are placed 400 mm apart. Express the gravitational attraction acting between the...

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Atomic diffusion in solids

In material science, diffusion can take place in solid, liquid, and gases. In solids, atomic diffusion can take place with the help of thermally activated and randomly vibrating atoms. The atomic diffusion in solids is complex and very slow in comparison to atomic diffusion in liquids and gases because the interatomic distance between the atoms is smaller in solids as compared to liquids and gases.

Question

Consider two iron spheres, each of diameter 295 mm, which are just touching. At what distance r from the center of the earth will the
force of mutual attraction between the contacting spheres be equal to the force exerted by the earth on one of the spheres?
Answer: r =
(107)km

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