A speaker, speaker A, is 2.00 m in front of you playing a single frequency 35.00Hz.* A second speaker, speaker B, is placed behind speaker A, further from you and along the line from you to speaker A. The speaker B plays the same frequency and the difference in phase constant between the two speakers is Δ øo = π /2. a) At what distance from you, further than the first speaker, do you need to place the second speaker so that there is total deconstructive interference, amplitude zero at all times, at your location? Assume 20 oc. There are a discrete set of infinite answers and I will accept any of them.

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Chapter17: Sound Waves
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A speaker, speaker A, is 2.00 m in front of you playing a single frequency 35.00Hz.* A second speaker, speaker B, is placed behind speaker A, further from you and along the line from you to speaker A. The speaker B plays the same frequency and the difference in phase constant between the two speakers is Δ øo = π /2.

  1. a) At what distance from you, further than the first speaker, do you need to place the second speaker so that there is total deconstructive interference, amplitude zero at all times, at your location? Assume 20 oc.

There are a discrete set of infinite answers and I will accept any of them.

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