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Author Question: Let's say that you are spinning a fixed-frequency buzzer attached to a string in a circular path ... (Read 49 times)

Sufayan.ah

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on: Jul 28, 2018
Let's say that you are spinning a fixed-frequency buzzer attached to a string in a circular path around you at a constant speed. The frequency that you hear as you spin the buzzer<--EndFragment--> sity?
  1.is greater than the frequency of the buzzer and it is constant.
  2.alternates between being greater than the frequency of the buzzer and less than the frequency of the buzzer.
  3.is less than the frequency of the buzzer and it is constant.
  4.is the same as the frequency of the buzzer.

Question 2

If a rock concert has a sound level of 120 dB associated with it and a cheering crowd has a sound level of 90 dB associated with it, how many times greater is the rock concert's intensity compared to the cheering crowd's intensity?
  1.30
  2.90
  3.300
  4.1000


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Kdiggy

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

4

Answer to Question 2

4


Sufayan.ah

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


Kdiggy

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


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