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Author Question: What are the standard units for apparent brightness? A) watts B) joules C) Newtons D) watts ... (Read 103 times)

student77

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on: Jul 27, 2018
What are the standard units for apparent brightness?
 
  A) watts
  B) joules
  C) Newtons
  D) watts per second
  E) watts per square meter

Question 2

Due to absorption of shorter wavelengths by interstellar dust clouds, distant stars appear:
 
  A) bluer.
  B) brighter.
  C) redder.
  D) larger.
  E) to have a higher radial velocity.


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Bison

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

E

Answer to Question 2

C


student77

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Reply #2 on: Jul 27, 2018
TY


Bison

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Reply #3 on: Jul 27, 2018
You're welcome


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