Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 6th Edition
Astrophysics and Cosmology
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33-1 to 33-3: Stars, Galaxies, Stellar Evolution, Distances
33-4: General Relativity, Gravity and Curved Space
33-5: Redshift, Hubble's Law
33-6 to 33-8: The Big Band, CMB, Universe Expansion

Problem 22
1.4×108 ly1.4 \times 10^8 \textrm{ ly}
Giancoli 6th Edition, Chapter 33, Problem 22 solution video poster

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