Planet X has a mass of M and a radius of R and planet Y has a mass of 3M. It is observed that the weight of an object is identical on both planets. By what factor does the radius of planet Y vary from planet X?

Planet X has a mass of M and a radius of R and planet Y has a mass of 3M. It is observed that the weight of an object is identical on both planets. By what factor does the radius of planet Y vary from planet X?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter13: Gravitation

Section: Chapter Questions

Problem 27P: The acceleration due to gravity on the surface of a planet is three times as large as it is on the...

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Question

Mass at different points

Planet X has a mass of M and a radius of R and planet Y has a mass of 3M. It is observed that
the weight of an object is identical on both planets. By what factor does the radius of planet Y
vary from planet X?

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