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Author Question: An extremely long thin wire carries a uniform linear charge density of 358 nC/m. Find the ... (Read 72 times)

itsmyluck

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on: Jul 29, 2018
An extremely long thin wire carries a uniform linear charge density of 358 nC/m.
 
  Find the potential difference between points 5.0 m and 6.0 m from the wire, provided they are not near either end of the wire. (k = 1/40 = 8.99  109 N  m2/C2)
  A) 0.215 kV B) 1.2 kV C) 6.0 kV D) 0.21 kV

Question 2

A plastic ball in a liquid is acted upon by its weight and by a buoyant force. The weight of the ball is NaN N. The buoyant force has a magnitude of NaN N and acts vertically upward.
 
  An external force acting on the ball maintains it in a state of rest. The external force, including direction, is closest to: A) NaN N, downward
  B) NaN N, upward
  C) NaN N, upward
  D) NaN N, upward
  E) NaN N, downward


nanny

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

B

Answer to Question 2

A


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