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Author Question: Which of the following makes an approximate uniform electric field? A) a metal charged sphere B) ... (Read 85 times)

shenderson6

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on: Jul 27, 2018
Which of the following makes an approximate uniform electric field?
 
  A) a metal charged sphere
  B) a metal charged cylinder
  C) a very long line of positive charge
  D) very large, closely separated, parallel oppositely charged plates
  E) two long parallel, closely separated, oppositely charged lines of charge

Question 2

A 0.32 kg ball is moving horizontally 30. m/s just before bouncing off a wall, thereafter moving 25. m/s in the opposite direction.
 
  (a) What is the magnitude of its change in momentum?
  (b) What percentage of the kinetic energy was lost in the collision?


Sassygurl126

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

D

Answer to Question 2

(a) 18. N-s
(b) 31. lost


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