The masses of galaxies are often determined by
A) Determining their star formation rates
B) Counting their stars
C) Measuring their tidal forces on the Milky Way
D) Measuring their rotation curves
Correct Answer:
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Q2: The Milky Way galaxy is
A)Irregular
B)Elliptical
C)Spiral
D)Barred spiral
Q3: What evidence do we have that galaxies
Q4: The most massive galaxies in the universe
Q5: Suppose stars at 1000 ly from the
Q6: A primary difference between spiral and elliptical
Q7: The most numerous galaxies are probably
A)Irregulars
B)Spirals.
C)Ellipticals
D)Barred spirals
Q8: Which of the following is the best
Q9: Suppose a galaxy has a flat rotation
Q10: One would expect the Hertzsprung-Russell diagram of
Q11: A barred spiral with loosely wound arms
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