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Author Question: If the current density in a wire is given by j = kr, 0 < r < R, where R is the radius of the ... (Read 37 times)

joesmith1212

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on: Jul 29, 2018
If the current density in a wire is given by j = kr, 0 < r < R, where R is the radius of the wire, the current in the wire is
 
  A)
 
  2kR3/3.
  B)
 
  3kR3/2.
  C)
 
  kR3/3.
  D)
 
  kR2.
  E)
 
  kR2/2.

Question 2

A wave has an amplitude 20.0 cm, a wavelength 3.00 m, and the wave travels 60.0 m in 12.0 s. What is the frequency of the wave?
 
  A)
 
  8.33 Hz
 
  B)
 
  250 Hz
 
  C)
 
  0.500 Hz
 
  D)
 
  1.67 Hz
 
  E)
 
  150 Hz


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bimper21

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

A

Answer to Question 2

D


joesmith1212

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  • Posts: 549
Reply 2 on: Jul 29, 2018
Wow, this really help

FergA

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Reply 3 on: Yesterday
Excellent

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