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Author Question: A parallel-plate capacitor has a voltage V = 6.0 V between its plates. Each plate carries a surface ... (Read 122 times)

casperchen82

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on: Jul 29, 2018
A parallel-plate capacitor has a voltage V = 6.0 V between its plates. Each plate carries a surface charge density  = 7.0 nC/m2. What is the separation of the plates?
 
  A)
 
  8.2 mm
  B)
 
  2.5 mm
  C)
 
  1.2 mm
  D)
 
  5.6 mm
  E)
 
  7.6 mm

Question 2

A pendulum is made by suspending a solid circular disk from a pivot point that is at the edge of the disk with the plane of the disk lying in the vertical plane. The period of oscillation of the disk is T.
 
  If a disk with the same radius but a mass four times is great is suspended the same way, what will be its period of oscillation? A)
 
  4T
 
  B)
 
  T/2
 
  C)
 
  2T
 
  D)
 
  T
 
  E)
 
  T/4


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Sassygurl126

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

E

Answer to Question 2

D


casperchen82

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Reply 2 on: Jul 29, 2018
Gracias!

emsimon14

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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