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Ast 104 Q&A - Ast 104 1) WHAT is a standard candle C. 2)...

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Ast 1041)WHAT is a standard candle
2) which of the following is NOT a standard candle?
3) what parameters does Hubble’s law relate to each other?
4) Galaxy A is moving away from me twice as fast as Galaxy B. That probably meansit’s twice as far away.
5) what are the velocities of the galaxies (assume 1 yr from original to later)?
The further it is from A the faster it seem to be going
6)if the universe is expanding, what are the implications for the separations betweentwo stars within our galaxy?
7) what do we mean by the expansion of the universe?
8) for an observer in Galaxy B, which of the following ranking lists the speeds (fromfastest to slowest) at which Galaxies E, C, and D would be moving away?
8) If the hubble constant were larger the universe would be expandingA more quicklyIf we double the size of the earth, the expansion rate appears to be the same fromanywhere. No matter where you are the expansion rate is the same.
One example of something that expands but has no center or edge is the suface of aballoonHow do galaxies move within the universe.
9) X,Y, and Z represent widely separated galaxies in an expanding Universe.Oberservers in X see both Y and Z moving away. Observers in Z would see
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/Physics-for-Scientists-and-Engineers-with-Modern-Physics-10th-Edition-9781337553292-680/
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Chapter 44 / Exercise 01
Physics for Scientists and Engineers with Modern Physics
Jewett/Serway
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10) what model helps understand that all galaxies could be receding from each otherdue to the expansion of space, but seeing this does not mean you’re in the center?
11) Your friends leaves your house. She later calls saying that shes been driving at60 mph directly away from you the whole12) you observe a galaxy moving away from you at 0.1 light-years per year, and it isnow 1.4 billion light years away from you. How long has it taken to get there?

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Term
Fall
Professor
dontremember
Tags
Galaxies, Black Holes, Big Bang, Redshift, Cosmic Microwave Background
We have textbook solutions for you!
The document you are viewing contains questions related to this textbook.
Physics for Scientists and Engineers with Modern Physics
The document you are viewing contains questions related to this textbook.
Chapter 44 / Exercise 01
Physics for Scientists and Engineers with Modern Physics
Jewett/Serway
Expert Verified

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