Multiple Choice
If most of the mass of a galaxy is located near the center of the galaxy, then in the outer part of this galaxy the orbital speeds of stars must decrease with increasing distance from the center. This behavior would be equivalent to
A) Newton's third law.
B) Wien's law.
C) Hubble's law.
D) Kepler's third law.
Correct Answer:
Verified
Correct Answer:
Verified
Q12: Consider a cluster of galaxies. What is
Q13: Suppose an astronomer discovers a distant quasar
Q14: The primary evidence for the expanding universe
Q15: To an astronomer, what is a "standard
Q16: One of the consequences of the collision
Q18: The Hubble law, representing observations of distant
Q19: The distance-measuring techniques, arranged in order of
Q20: The largest range of sizes of galaxies
Q21: How does the winding dilemma affect flocculent
Q22: What is a probable mechanism for the