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Author Question: Two identical particles, each with a mass of 2.0 g and a charge of 25 nC, are released ... (Read 7379 times)

drink

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on: Jul 28, 2018
Two identical particles, each with a mass of 2.0 g and a charge of 25 nC, are released simultaneously from rest when the two are 4.0 cm apart. What is the speed of either particle at the instant when the two are separated by 10 cm?
 a. 7.3 m/s
  b. 9.8 m/s
  c. 9.2 m/s
  d. 6.5 m/s
  e. 4.6 m/s

Question 2

A 60-C charge is held fixed at the origin and a 20-C charge is held fixed on the x axis at a point x = 1.0 m. If a 10-C charge is released from rest at a point x = 40 cm, what is its kinetic energy the instant it passes the point x = 70 cm?
 a. 9.8 J
  b. 7.8 J
  c. 8.8 J
  d. 6.9 J
  e. 2.8 J


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kbennett34

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

d

Answer to Question 2

c


drink

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

sarah_brady415

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Reply 3 on: Yesterday
Wow, this really help

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