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Author Question: When Ken Ford wears noise-canceling earphones in his airplane, he is applying A) anti-noise ... (Read 18 times)

future617RT

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on: Jul 29, 2018
When Ken Ford wears noise-canceling earphones in his airplane, he is applying
 
  A) anti-noise technology.
  B) beats.
  C) resonance of sound.
  D) all of these
  E) none of the above

Question 2

A node is a position of
 
  A) minimum amplitude.
  B) maximum amplitude.
  C) minimum frequency.


frankwu0507

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

Answer: A

Answer to Question 2

Answer: A


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