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Author Question: An air-filled 39.1 H solenoid has a length 4.0 cm and cross-sectional area 0.60 cm2. How many turns ... (Read 138 times)

sheilaspns

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on: Jul 29, 2018
An air-filled 39.1 H solenoid has a length 4.0 cm and cross-sectional area 0.60 cm2. How many turns are in this solenoid?
 
  A)
 
  1200
  B)
 
  12
  C)
 
  120
  D)
 
  144
  E)
 
  21000

Question 2

A harmonic wave has a wavelength of 2.0 m and a frequency of 5.0 Hz. What is the speed of the wave?
 
  A)
 
  10 m/s
 
  B)
 
  0.40 m/s
 
  C)
 
  0.50 m/s
 
  D)
 
  0.10 m/s
 
  E)
 
  2.5 m/s


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medine

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

D

Answer to Question 2

A


sheilaspns

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Reply #2 on: Jul 29, 2018
TY


medine

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Reply #3 on: Jul 29, 2018
You're welcome


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