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Author Question: A particle (charge = +40 mC) is located on the x axis at the point x = -20 cm, and a second particle ... (Read 101 times)

misspop

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on: Jul 28, 2018
A particle (charge = +40 mC) is located on the x axis at the point x = -20 cm, and a second particle (charge = -50 mC) is placed on the x axis at x = +30 cm. What is the magnitude of the total electrostatic force on a third particle (charge = -4.0 mC) placed at the origin (x = 0)?
 a. 41 N
  b. 16 N
  c. 56 N
  d. 35 N
  e. 72 N

Question 2

Each of two small non-conducting spheres is charged positively, the combined charge being 40 mC. When the two spheres are 50 cm apart, each sphere is repelled from the other by a force of magnitude 2.0 N. Determine the magnitude of the smaller of the two charges.
 a. 1.4 mC
  b. 1.1 mC
  c. 2.0 mC
  d. 3.3 mC
  e. 17 mC


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matt

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

C

Answer to Question 2

A


misspop

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  • Posts: 540
Reply 2 on: Jul 28, 2018
Great answer, keep it coming :)

alexanderhamilton

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Reply 3 on: Yesterday
Excellent

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