Geography, 21.07.2019 10:30, terrysizemore666
What do we mean when we say that the rotation curve for a spiral galaxy is "flat"? what do we mean when we say that the rotation curve for a spiral galaxy is "flat"? the disk of a spiral galaxy is quite flat rather than spherical like the halo. gas clouds orbiting far from the galactic center have approximately the same orbital speed as gas clouds located further inward. the amount of light emitted by stars at different distances is about the same throughout the galaxy. all the galaxy's mass is concentrated in its flat, gaseous disk?
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Geography, 23.06.2019 14:30, wheeler2455
What factors britain to become an industrial and commercial power?
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Geography, 23.06.2019 15:20, abelxoconda
Which of these is the sound of fish slapping against human flesh?
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What do we mean when we say that the rotation curve for a spiral galaxy is "flat"? what do we mean...
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