How was Hubble able to determine the distances of nearby galaxies?
A) By measuring the expansion speeds of supernova shells
B) By measuring trigonometric parallaxes
C) By measuring their radial velocities
D) By observing Cepheid variables in them
Correct Answer:
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Q29: Which of the following is the best
Q30: Hubble's relationship between the distance to a
Q31: According to current ideas on the evolution
Q32: A galaxy at a distance of 100
Q33: The black hole mass at the center
Q34: A strong argument in favor of the
Q36: Suppose an astronomer living on a planet
Q37: A collision of two large spiral galaxies
Q38: Hubble's law describes the relationship between
A)Red shift
Q39: Physically,the Hubble constant is a measure of
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