Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 33 - Astrophysics and Cosmology - Questions: 2

Answer

If a star generates more energy in its core than it radiates at the surface, then its temperature will increase.

Work Step by Step

The resulting greater outward pressure causes the star to expand until it reaches equilibrium again. The opposite happens if a star generates less energy in its core than it radiates at the surface: it contracts.
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