Astrophysicists believe that our sun started out as a large cloud of hydrogen gas. Gravitational attraction between the gas molecules caused it to collapse. We can approximate both the initial cloud of gas and the sun to be spheres of uniform density. The mass of the initial cloud of gas and the sun are the same. The radius of the sun is much smaller than the radius of the initial cloud of gas. The sun now spins once every 24.5 days. The rotational kinetic energy of the sun is .

Astrophysicists believe that our sun started out as a large cloud of hydrogen gas. Gravitational attraction between the gas molecules caused it to collapse. We can approximate both the initial cloud of gas and the sun to be spheres of uniform density. The mass of the initial cloud of gas and the sun are the same. The radius of the sun is much smaller than the radius of the initial cloud of gas. The sun now spins once every 24.5 days. The rotational kinetic energy of the sun is .

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Description: Astrophysicists believe that our sun started out as a large cloud of hydrogen gas. Gravitational attraction between the gasmolecules caused it to collapse. We can approximate both the initial cloud of gas and the sun to be spheres of uniformdensity.

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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Astrophysicists believe that our sun started out as a large cloud of hydrogen gas. Gravitational attraction between the gas
molecules caused it to collapse. We can approximate both the initial cloud of gas and the sun to be spheres of uniform
density. The mass of the initial cloud of gas and the sun are the same. The radius of the sun is much smaller than the
radius of the initial cloud of gas.
The sun now spins once every 24.5 days. The rotational kinetic energy of the sun is .
about the same as the rotational kinetic energy of the original hydrogen cloud.
O much smaller than the rotational kinetic energy of the original hydrogen cloud.
much greater than the rotational kinetic energy of the original hydrogen cloud.
zero.

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