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Author Question: A particle (charge 7.5 mC) is released from rest at a point on the x axis, x = 10 cm. It begins to ... (Read 314 times)

elizabeth18

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on: Jul 28, 2018
A particle (charge 7.5 mC) is released from rest at a point on the x axis, x = 10 cm. It begins to move due to the presence of a 2.0-mC charge which remains fixed at the origin. What is the kinetic energy of the particle at the instant it passes the point x = 1.0 m?
 a. 3.0 J
  b. 1.8 J
  c. 2.4 J
  d. 1.2 J
  e. 1.4 J

Question 2

A particle (charge = 40 mC) moves directly toward a second particle (charge = 80 mC) which is held in a fixed position. At an instant when the distance between the two particles is 2.0 m, the kinetic energy of the moving particle is 16 J. Determine the distance separating the two particles when the moving particle is momentarily stopped.
 a. 0.75 m
  b. 0.84 m
  c. 0.95 m
  d. 0.68 m
  e. 0.56 m


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uniquea123

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Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

C


elizabeth18

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

atrochim

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

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