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Author Question: How old is the Universe since the big bang? Pick the best answer according to radioactive dating in ... (Read 78 times)

hbsimmons88

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on: Jul 27, 2018
How old is the Universe since the big bang? Pick the best answer according to radioactive dating in the solar system, light travel times to most distant galaxies, time reversal of the big bang, and observations of the 3-K radiation.
 
  a. 1400 years
  b. 14,000 years
  c. 14,000,000 years
  d. 14,000,000,000 years

Question 2

Evidence for a very early super rapid inflation of the universe is that the 3-K radiation from opposite sides of the sky (i.e., 180 degrees or about 28 billion light years apart) is of nearly ___________ intensity. Time for light to travel this distance is ___________ the age of the universe in years.
 
  a. equal; greater than
  b. unequal; greater than
  c. equal; less than
  d. unequal; less than


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steff9894

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

d

Answer to Question 2

a
RATIONALE: See horizon problem.'


hbsimmons88

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

lindahyatt42

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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