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Author Question: A person walks in a distance x northward, turns around and walks a distance 7.00x southward. If the ... (Read 147 times)

fahad

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A person walks in a distance x northward, turns around and walks a distance 7.00x southward. If the total displacement of the person from his starting position is 400 m south. What was the total distance walked?
 
  A)
 
  421 m
 
  B)
 
  457 m
 
  C)
 
  515 m
 
  D)
 
  533 m
 
  E)
 
  400 m

Question 2

Outside a spherically symmetric charge distribution of net charge Q, Gauss's law can be used to show that the electric field at a given distance
 
  A)
 
  must be zero.
  B)
 
  must be directed outward.
  C)
 
  acts like it originated in a point charge Q at the center of the distribution.
  D)
 
  must be directed inward.
  E)
 
  must be greater than zero.



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hramirez205

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Answer to Question 1

D

Answer to Question 2

C




fahad

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Reply 2 on: Jul 29, 2018
Gracias!


adf223

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Reply 3 on: Yesterday
Wow, this really help

 

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