Cosmic Perspective Fundamentals
Cosmic Perspective Fundamentals
3rd Edition
ISBN: 9780134988504
Author: Bennett, Jeffrey O., Donahue, M. (megan), SCHNEIDER, Nicholas, Voit, Mark
Publisher: Pearson,
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Chapter 14, Problem 12QQ

Choose the best answer to each of the following. Explain your reasoning.

Current evidence suggests that ordinary matter such as atoms makes up about what percentage of the total mass-energy of the universe?

(a) 90% (h) 50% (C) 5%

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