Author Question: A mountain top is an especially good site for infrared telescopes since: A) there you are closer ... (Read 24 times)

SGallaher96

  • Hero Member
  • *****
  • Posts: 509
A mountain top is an especially good site for infrared telescopes since:
 
  A) there you are closer to celestial objects.
  B) you are above most of the carbon dioxide and water vapor in the atmosphere.
  C) the cold weather helps the sensitivity of infrared detectors.
  D) less air above means better seeing in many cases.
  E) All of the above are factors.

Question 2

Most SETI searches are done at:
 
  A) X-ray wavelengths.
  B) infrared wavelengths.
  C) visual wavelengths.
  D) radio wavelengths.
  E) gamma wavelengths.



bob

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

E

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

For a complete list of videos, visit our video library