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Author Question: The gas between stars that has a temperature below a few hundred kelvins is best studies with which ... (Read 17 times)

SO00

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on: Jul 27, 2018
The gas between stars that has a temperature below a few hundred kelvins is best studies with which kind of telescope?
 
  A) Radio
  B) Infrared
  C) Optical
  D) Ultraviolet
  E) X-ray

Question 2

Earth is about 150 million km from the Sun, and the apparent brightness of the Sun in our sky is about 1,300 watts per square meter.
 
  Determine the apparent brightness we would measure for the Sun if we were located one-third of Earth's distance from the Sun.


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Ksanderson1296

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

The Sun would appear nine times brighter. So the apparent brightness would be 9  1,300 watts per square meter = 11,700 watts per square meter.


SO00

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Reply 2 on: Jul 27, 2018
Excellent

sarah_brady415

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Reply 3 on: Yesterday
Gracias!

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