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Author Question: Two thin 80.0-cm rods are oriented at right angles to each other. Each rod has one end at the origin ... (Read 96 times)

future617RT

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on: Jul 29, 2018
Two thin 80.0-cm rods are oriented at right angles to each other. Each rod has one end at the origin of the coordinates, and one of them extends along the +x-axis while the other extends along the +y-axis.
 
  The rod along the +x-axis carries a charge of -15.0 C distributed uniformly along its length, and the other rod carries +15.0 C uniformly over its length. Find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e = 1.60  10-19 C, 0 = 8.85  10-12 C2/N  m2)

Question 2

An electric device delivers a current of 5.0 A to a device. How many electrons flow through this device in 10 s? (e = 1.60  10-19 C)
 
  A) 0.20
  B) 20
  C) 2.0
  D) 3.1  1020
  E) 31  1020


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ASDFGJLO

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Reply #1 on: Jul 29, 2018
Answer to Question 1

1.35  10-13 N at 135 with respect to the +x-axis

Answer to Question 2

D


future617RT

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Reply #2 on: Jul 29, 2018
Thank you!


ASDFGJLO

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Reply #3 on: Jul 29, 2018
Always glad to help...


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