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Author Question: Identical 8.0-mC point charges are positioned on the x axis at x = 1.0 m and released from rest ... (Read 41 times)

abern

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on: Jul 28, 2018
Identical 8.0-mC point charges are positioned on the x axis at x = 1.0 m and released from rest simultaneously. What is the kinetic energy of either of the charges after it has moved 2.0 m?
 a. 84 mJ
  b. 54 mJ
  c. 96 mJ
  d. 63 mJ
  e. 48 mJ

Question 2

A particle (q = +5.0 mC) is released from rest when it is 2.0 m from a charged particle which is held at rest. After the positively charged particle has moved 1.0 m toward the fixed particle, it has a kinetic energy of 50 mJ. What is the charge on the fixed particle?
 a. -2.2 mC
  b. +6.7 mC
  c. -2.7 mC
  d. +8.0 mC
  e. -1.1 mC


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leeeep

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

C

Answer to Question 2

A


abern

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Reply 2 on: Jul 28, 2018
Excellent

vickybb89

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Reply 3 on: Yesterday
Wow, this really help

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