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Home Q & A Board Science-Related Homework Help Physics Astronomy
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jackiemartini09 jackiemartini09
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6 years ago
Briefly outline the theory or hypothesis which best explains the origin of the solar system.
 
  What will be an ideal response?

Question 2

Why was Herschel's strategy for mapping our Galaxy flawed?
 
  A) His infrared telescopes couldn't penetrate the dust clouds.
  B) He used globular clusters, lying above the dust in the disc.
  C) He relied on visual wavelengths, which are obscured by dust.
  D) He used radio telescopes that didn't give enough resolution.
  E) He assumed Earth was at the extreme edge of the Galaxy.

Question 3

In our Sun, the spectral lines of hydrogen are weak, compared to their appearance in hotter stars.
 
  Indicate whether the statement is true or false

Question 4

At the end of the first fifteen minutes, the mass ratio of H/He created was about:
 
  A) 50/50.
  B) 75/25.
  C) 27/73.
  D) 90/10.
  E) 1/4.

Question 5

Mars appears from Earth to go through all the phases like Venus.
 
  Indicate whether the statement is true or false
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elieli
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6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
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