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Author Question: What is a blackbody? a. a perfect emitter and a perfect absorber of light b. a perfectly opaque ... (Read 27 times)

Yi-Chen

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on: Jul 27, 2018
What is a blackbody?
 
  a. a perfect emitter and a perfect absorber of light b. a perfectly opaque object
  c. a dense object having a temperature above absolute zero d. All of the other choices are correct.

Question 2

The Moon always keeps the same side facing Earth.
 
  a. True
  b. False
  Indicate whether the statement is true or false


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Tonny

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

d

Answer to Question 2

True


Yi-Chen

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Reply 2 on: Jul 27, 2018
Wow, this really help

debra928

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Reply 3 on: Yesterday
Gracias!

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