Our sun rotates around its axis once every 27 days. • What is the sun's angular velocity in rad/s? • What is the sun's moment of inertia in kg*m? (Assume it's a solid sphere) If the sun turned into a red giant, the radius would increase to 100 times its current radius. Assuming no loss of mass and that the sun is a solid sphere, what would be the sun's new moment of inertia? • What would be the sun's new angular velocity assuming angular momentum is conserved? msun = 1.99 * 1030kg Tsun = 6.96 * 105 km

Our sun rotates around its axis once every 27 days. • What is the sun's angular velocity in rad/s? • What is the sun's moment of inertia in kgm? (Assume it's a solid sphere) If the sun turned into a red giant, the radius would increase to 100 times its current radius. Assuming no loss of mass and that the sun is a solid sphere, what would be the sun's new moment of inertia? • What would be the sun's new angular velocity assuming angular momentum is conserved? msun = 1.99 1030kg Tsun = 6.96 * 105 km

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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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

Our sun rotates around its axis once every 27 days.
• What is the sun's angular velocity in rad/s?
• What is the sun's moment of inertia in kg*m? (Assume it's a solid sphere)
If the sun turned into a red giant, the radius would increase to 100 times its current radius.
Assuming no loss of mass and that the sun is a solid sphere, what would be the sun's
new moment of inertia?
• What would be the sun's new angular velocity assuming angular momentum is
conserved?
msun = 1.99 * 1030kg
Tsun = 6.96 * 105 km

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