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Home Q & A Board Science-Related Homework Help Physics Astronomy
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lacerna92 lacerna92
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6 years ago
In general, the narrower the spectral line of a star
 
  A) the hotter the star is.
  B) the bigger the star is.
  C) the denser the star is.
  D) the smaller the star is.
  E) the cooler the star is.

Question 2

Noting the turnoff mass in a star cluster allows you to determine its:
 
  A) distance.
  B) radial velocity.
  C) age.
  D) total mass.
  E) number of stars.

Question 3

How large is Jupiter's magnetosphere?
 
  A) It is about as large as the Earth's.
  B) It is so large it extends out to the orbit of Io.
  C) It is a million times the volume of the Earth's, extending beyond the orbit of Saturn.
  D) It extends inward to the orbit of Mars.
  E) It envelopes even the Sun and rest of the solar system.

Question 4

Radio telescopes image a universe much ________ in temperature than with visible light.
 
  Fill in the blank(s) with correct word

Question 5

Astronomers have discovered more planets around other stars than in our Solar System.
 
  Indicate whether the statement is true or false
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esimpso3esimpso3
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6 years ago
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zsc999
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6 years ago
Thanks for your help!!
macbookpro1
wrote...

Yesterday
this is exactly what I needed
lolaww
wrote...

2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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