When Ken Ford wears noise-canceling earphones in his airplane, he is applying A) anti-noise ...

Author Question: When Ken Ford wears noise-canceling earphones in his airplane, he is applying A) anti-noise ... (Read 29 times)

future617RT

Hero Member
Posts: 543

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

Sr. Member
Posts: 322

Reply #1 on: Jul 29, 2018

Answer to Question 1

Answer: A

Answer to Question 2

Answer: A

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