Biology Forums - Study Force

Which of the following kinds of stars best obey the mass-luminosity relation?
 
  a. main sequence stars
  b. giant stars
  c. supergiant stars
  d. white dwarfs
  e. all of the above

Question 2

Total lunar eclipses always occur
 
  a. at the time of new moon.
  b. at the time of full moon.
  c. during either equinox.
  d. during either solstice.
  e. at the time that the sun is directly overhead.

Question 3

If we can solve the orbital motion of an eclipsing binary, we can find
 
  a. the mass of each star.
  b. the diameter of each star.
  c. the distance to the binary.
  d. all of the above
  e. both a and b

Question 4

The first quarter moon rises
 
  a. at about noon.
  b. at sunset.
  c. at sunrise.
  d. at about midnight.
  e. during the second week of each calendar month.

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