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Author Question: How much energy is radiated each second by one square meter of a star whose temperature is 10,000 K? ... (Read 33 times)

tiara099

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on: Jul 27, 2018
How much energy is radiated each second by one square meter of a star whose temperature is 10,000 K? s in the Stefan-Boltzmann law is equal to ,
 
  a. 5.67 x 1012 J
  b. 5.67 x 108 J
  c. 5.67 x 104 J
  d. 300 nm
  e. 300,000,000 nm

Question 2


  The diagram illustrates a light source, a gas cloud, and three different lines of sight. Along which line of sight would an observer see an emission spectrum?
 
  a. 1
  b. 2
  c. 3
  d. 2 and 3
  e. none of them


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amynguyen1221

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

B

Answer to Question 2

B


tiara099

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Reply 2 on: Jul 27, 2018
Gracias!

sultana.d

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Reply 3 on: Yesterday
Excellent

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