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Author Question: What part of the human ear acts as the first resonator in the system? a. The eardrum. b. The ... (Read 13 times)

mrsjacobs44

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on: Jul 28, 2018
What part of the human ear acts as the first resonator in the system?
 a. The eardrum.
  b. The middle ear.
  c. The ear lobes.
  d. The ear canal.
  e. The inner ear.

Question 2

How does sonar work?
 a. It measures the speed of sound by timing how long it takes sound to travel.
  b. It compares the speed of sound under different circumstances, by changing temperature or gas content.
  c. It compares the frequencies of the emitted and reflected sound wave.
  d. It measures the distance to underwater objects by bouncing sound waves off the objects.
  e. It measures the distance to objects in the upper atmosphere by timing the speed of sound to those objects.


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nickk12214

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Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

d


mrsjacobs44

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


nickk12214

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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