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Author Question: Space-time will be flat if a. the Universe is expanding. b. the Universe is accelerating. c. ... (Read 144 times)

Beheh

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on: Jul 27, 2018
Space-time will be flat if
 
  a. the Universe is expanding.
  b. the Universe is accelerating.
  c. the average density of the Universe is equal to the critical density.
  d. the Universe is finite.
  e. the Universe is homogeneous and isotropic.

Question 2

The helium core flash occurs in very high mass stars.
 
  a. True
  b. False
  Indicate whether the statement is true or false


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s.meritte

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

c

Answer to Question 2

False


Beheh

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Reply 2 on: Jul 27, 2018
Gracias!

ryhom

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Reply 3 on: Yesterday
Wow, this really help

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