EP COSMIC PERSPECTIVE-MOD.MASTERING
EP COSMIC PERSPECTIVE-MOD.MASTERING
9th Edition
ISBN: 9780137453481
Author: Bennett
Publisher: SAVVAS L
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Chapter 23, Problem 54EAP
To determine

Mass-to-light ratio.

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GMm F, r2 F(r = R) The surface gravity g of a body is. The acceleration due to gravity that an object m would feel on the surface of the body. A. Show that the surface gravity of Earth is ge = 9.8 m/s². B. Determine the surface gravity of the Sun. C. Determine the surface gravity of the Sun when it becomes a red giant star, assuming RG 1 AU. Use this answer to explain the significant mass loss rates observed in these objects.
If our universe is expanding, what are the implications for the separation between two stars within our galaxy?   A. The two stars are moving farther apart.   B. The two stars are moving closer together.   C. The distance between the two stars is unaffected.    D. The question is impossible to answer without more information.
Imagine there is a large star that produces 2.5 x 1030 Watts of power. If there is a planet orbiting this star from 500 million kms away, what would be the solar constant of that planet?   a. 7,900W/m2   b. 52,000 W/m2   c. 250,000 W/m2   d. 800,000 W/m2​​​​​​​

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EP COSMIC PERSPECTIVE-MOD.MASTERING

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