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Author Question: A positive point charge Q is fixed on a very large horizontal frictionless tabletop. A second ... (Read 34 times)

leo leo

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on: Jul 29, 2018
A positive point charge Q is fixed on a very large horizontal frictionless tabletop. A second positive point charge q is released from rest near the stationary charge and is free to move.
 
  Which statement best describes the motion of q after it is released? A) Its speed will be greatest just after it is released.
  B) Its acceleration is zero just after it is released.
  C) As it moves farther and farther from Q, its acceleration will keep increasing.
  D) As it moves farther and farther from Q, its speed will decrease.
  E) As it moves farther and farther from Q, its speed will keep increasing.

Question 2

How much work must be done to accelerate a particle of mass 2.1  10-14 kg from a speed of 1.5  108 m/s to a speed of 2.5  108 m/s? (c = 3.00  108 m/s)
 
  What will be an ideal response?


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sultana.d

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

E

Answer to Question 2

1200 J


leo leo

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Reply 2 on: Jul 29, 2018
Wow, this really help

Hdosisshsbshs

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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