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Author Question: A very long string is tied to a rigid wall at one end while the other end is attached to a simple ... (Read 124 times)

elizabeth18

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on: Jul 28, 2018
A very long string is tied to a rigid wall at one end while the other end is attached to a simple harmonic oscillator. Which of the following can be changed by changing the frequency of the oscillator?
 a. The speed of the waves traveling along the string.
  b. The tension in the string.
  c. The wavelength of the waves on the string.
  d. All of the above.
  e. None of the above.

Question 2

Two speakers in an automobile emit sound waves that are in phase at the speakers. One speaker is 40 cm ahead of and 30 cm to the left of the driver's left ear. The other speaker is 50 cm ahead of and 120 cm to the right of the driver's right ear. Which of the following wavelengths is(are) in phase at the left ear for the speaker on the left and the right ear for the speaker on the right?
 a. 10 cm
  b. 20 cm
  c. 650 cm
  d. All of the wavelengths listed above.
  e. Only the wavelengths listed in (a) and (b).


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zoeyesther

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

c

Answer to Question 2

e


elizabeth18

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Reply #2 on: Jul 28, 2018
Thank you!


zoeyesther

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Reply #3 on: Jul 28, 2018
Always glad to help...


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