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B88101 B88101
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3 weeks ago

A star orbits within the disk of the Milky Way Galaxy, 40 000 ly from the centre. Which of the following will its orbital speed most depend on?



the mass of the black hole at the centre of the galaxy



the position of a star relative to a spiral density wave



the mass contained within the star's orbit



the abundance of metals in the star

Textbook 
ASTRO

ASTRO


Edition: 3rd
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LoveameriahLoveameriah
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