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anonymous

  • one year ago

Two sound waves of the same frequency and amplitude are broadcast from speakers at opposite ends of a theater. In the middle of the theater, you hear no sound. Which of the following is true? A. The two waves are in phase in the middle of the theater. B. The two waves are 45° out of phase in the middle of the theater. C. The two waves are 90° out of phase in the middle of the theater. D. The two waves are 180° out of phase in the middle of the theater. **thanks!! :)

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  1. Michele_Laino
    • one year ago
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    Hint: the two waves have to be in opposition of phase

  2. anonymous
    • one year ago
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    ohh okay! so choice D is the answer ?

  3. Michele_Laino
    • one year ago
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    yes! option D, correct!

  4. anonymous
    • one year ago
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    yay!! thanks so much!! :D

  5. Michele_Laino
    • one year ago
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    thanks!! :)

  6. Michele_Laino
    • one year ago
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    |dw:1432941861013:dw|

  7. Michele_Laino
    • one year ago
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    |dw:1432941891975:dw|

  8. Michele_Laino
    • one year ago
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    |dw:1432941917398:dw|

  9. anonymous
    • one year ago
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    ohh i see and then it is 180º out of the phase! opposite ends! :O

  10. Michele_Laino
    • one year ago
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    yes!

  11. anonymous
    • one year ago
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    yay:)

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