Cepheid variables are important stars to cosmologists because their ________ can be determined from their rate of pulsation.
A) age
B) amount of degenerate matter
C) rate of expansion
D) absolute magnitude
Correct Answer:
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Q1: Q2: Q3: Which one of the objects listed below Q4: Nebulae are strands or clumps of _. Q6: Which color stars have the coolest surface Q7: Which of the following types of nebulae Q8: Edwin Hubble used Cepheid variables to _. Q9: A star having the same mass of Q10: According to the big bang theory, the Q11: Which color stars have the highest surface
A)space
B)interstellar
A)establish
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