Two speakers are placed side-by-side and are driven by the same frequency of 720 Hz. If the distance from a man to one speaker is 2.25 m, and he detects little to no sound, what are the possible distances that he is from the other speaker? The speed of sound in air is 340 m/s.

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Two speakers are placed side-by-side and are driven by the same frequency of 720 Hz. If the distance from a man to one speaker is 2.25 m, and he detects little to no sound, what are the possible distances that he is from the other speaker? The speed of sound in air is 340 m/s.

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