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Author Question: A particle (charge = 40 C) moves directly toward a second particle (charge = 80 C) which is held in ... (Read 230 times)

littleanan

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on: Jul 28, 2018
A particle (charge = 40 C) moves directly toward a second particle (charge = 80 C) 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

Question 2

Particle A (mass = m, charge = Q) and B (mass = m, charge = 5 Q) are released from rest with the distance between them equal to 1.0 m. If Q = 12 C, what is the kinetic energy of particle B at the instant when the particles are 3.0 m apart?
 a. 8.6 J
  b. 3.8 J
  c. 6.0 J
  d. 2.2 J
  e. 4.3 J


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kescobar@64

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

c

Answer to Question 2

d


littleanan

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Reply 2 on: Jul 28, 2018
Gracias!

mohan

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Reply 3 on: Yesterday
Excellent

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