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final review 2 - AY C10 L&S C70U Fall 2006 1 What is the...

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AY C10 / L&S C70U Fall 2006 Nicholas McConnell 1. What is the difference between and m ? 2. A Pringles potato chip is an example of what type of curvature? 3. If (hypothetically) m = 0.4 and Λ = 0.8, what is the curvature of the universe? 4. What is one problem with the standard (no-inflation) Big Bang theory that is fixed by inflation? 5. If the universe were slowing its expansion now, how would Hubble’s “constant” measured long in the past differ from its value now? 6. Where was the oxygen we breathe originally created? 7. Why aren’t there any quasars in the nearest galaxies? 8. Why isn’t the night sky filled with starlight in every direction? 9. What is in the center of the Milky Way and other large galaxies? 10. Which is a more realistic model for the expanding universe: a balloon with dots drawn on in marker, or a balloon with paper dots taped on (dots represent galaxies or galaxy clusters)?
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AY C10 / L&S C70U Fall 2006 Nicholas McConnell 11. Does the CBR spectrum resemble a blackbody?
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