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Author Question: A spectroscopic binary shows periodic variations in its a. radial velocity. b. proper motion. ... (Read 80 times)

jrubin

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  • Posts: 552
on: Jul 27, 2018
A spectroscopic binary shows periodic variations in its
 
  a. radial velocity.
  b. proper motion.
  c. brightness.
  d. mass.
  e. spectral type.

Question 2

What is the wavelength of light that has a frequency of 3 MHz?
 
  a. 9  1014 Hz
  b. 1  1014 m
  c. 9  1014 m
  d. 100 m
  e. 0.01 m


hugthug12

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  • Posts: 329
Reply #1 on: Jul 27, 2018
Answer to Question 1

a

Answer to Question 2

d


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