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Author Question: A red ball with a velocity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with ... (Read 129 times)

Pineapplelove6

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on: Jul 29, 2018
A red ball with a velocity of +3.0 m/s collides head-on with a yellow ball of equal mass moving with a velocity of -2.0 m/s. What is the velocity of the red ball after the collision?
 
  A)
 
  zero
 
  B)
 
  -2.0 m/s
 
  C)
 
  +3.0 m/s
 
  D)
 
  +2.5.0 m/s
 
  E)
 
  +5.0 m/s

Question 2

If an electric field of magnitude 25 V/m makes an angle of 30 with a path of length 10 m, then the integral of Edl over this path has a value of
 
  A)
 
  30 V.
  B)
 
  250 V.
  C)
 
  125 V.
  D)
 
  217 V.
  E)
 
  -250 V.


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aruss1303

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

B

Answer to Question 2

D


Pineapplelove6

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


aruss1303

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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