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Home Q & A Board Science-Related Homework Help Physics Astronomy
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Tegab Tegab
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6 years ago
Spiral galaxies are mostly found ____.
 
  a. in poor clusters where their disk structure will not be disrupted
 b. isolated in space with only small dwarf galaxies nearby
 c. in the center of rich clusters where tidal forces can support their arm structure
  d. in clusters with hot intergalactic gas helping support star formation
 e. orbiting giant elliptical galaxies in a galactic binary system

Question 2

A lens called the _______________ is typically used to magnify the image and make it convenient to view distant objects.
 
  Fill in the blank(s) with correct word

Question 3

Rich galactic clusters ____.
 
  a. are rare, because galaxies are usually isolated in space
  b. contain gas that is rich in metals
 c. are composed of mostly elliptical galaxies
 d. are very spread out, without a defined center
 e. contain a wide variety of galaxy types and sizes

Question 4

What must be used to maintain the optics and operation of an infrared telescope?
 
  a. filters
 b. lasers
 c. coolant
 d. oxygen
 e. tertiary mirrors
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thatguythatguy
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6 years ago
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Tegab Author
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#2
6 years ago
You are really a genius. Thanks
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#3
6 years ago
NP
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