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Author Question: What is the product of 12.56 and 2.12 expressed to the correct number of significant figures? A) ... (Read 129 times)

rlane42

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on: Jul 29, 2018
What is the product of 12.56 and 2.12 expressed to the correct number of significant figures?
 
  A) 27
  B) 26.6
  C) 26.23
  D) 26.627

Question 2

The magnetic field of an electromagnetic wave has a peak value of 5.0  10-10 T.
 
  What is the intensity of the wave? (c = 3.0 x 108 m/s, c = 3.00  108 m/s, 0 = 4  10-7 T  m/A, 0 = 8.85  10-12 C2/N  m2)
  A) 1.0  10-13 W/m2
  B) 1.5  10-5 W/m2
  C) 3.0  10-5 W/m2
  D) 2.0  10-13 W/m2
  E) 7.5  105 W/m2


Mochi

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

B

Answer to Question 2

C


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