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Author Question: Is everything in the universe expanding? A) No, the Milky Way galaxy is not expanding. B) No, ... (Read 32 times)

ARLKQ

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on: Jul 29, 2018
Is everything in the universe expanding?
 
  A) No, the Milky Way galaxy is not expanding.
  B) No, the distances between the galaxies are not expanding.
  C) Both of the above are correct.
  D) Yes.

Question 2

Under standard conditions, the density of air is 1.29 kg/m3. What is the mass of the air inside a room measuring 4.0 m  3.0 m  2.0 m?
 
  A) 0.32 kg
  B) 3.1 kg
  C) 31 kg
  D) 1.9 kg
  E) 19 kg


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cloudre37

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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


ARLKQ

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Reply 2 on: Jul 29, 2018
Gracias!

bigcheese9

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Reply 3 on: Yesterday
Excellent

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