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Author Question: A 0.640-m long gas column is open at one end and closed at the other. What is the fundamental ... (Read 36 times)

BrownTown3

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on: Jul 29, 2018
A 0.640-m long gas column is open at one end and closed at the other. What is the fundamental resonant frequency of the air column if the speed of sound in the air is 340 m/s?
 
  A)
 
  432 Hz
 
  B)
 
  198 Hz
 
  C)
 
  266 Hz
 
  D)
 
  669 Hz
 
  E)
 
  133 Hz

Question 2

What wavelength corresponds to the n = 2  n = 1 transition in singly-ionized helium?
 
  A)
 
  15.2 nm
  B)
 
  22.8 nm
  C)
 
  4.56 nm
  D)
 
  11.4 nm
  E)
 
  30.4 nm


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meryzewe

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

E

Answer to Question 2

E


BrownTown3

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Reply #2 on: Jul 29, 2018
TY


meryzewe

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


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