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Author Question: The rare-Earth hypothesis would predict that the factor flife, in the Drake equation should be close ... (Read 54 times)

ishan

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  • Posts: 546
on: Jul 27, 2018
The rare-Earth hypothesis would predict that the factor flife, in the Drake equation should be close to
 
  A) 0
  B) 0.25
  C) 1
  D) 0.5

Question 2

If vector = -3.0 - 4.0 , and vector = +3.0 -8.0 , then the magnitude of vector = - is
 
  A) 3.0
  B) 16
  C) 7.2
  D) 144
  E) 13.4


parker125

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  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

C


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