Question

Along one axis, the two groups cheer the loudest when they are 14 m apart. The cheering intensity decreases (due to interference) as the distance between the two groups is increased, reaching zero when the two groups are 57 m apart. a) What is the wavelength of the sound? (include units) b) If the distance between the speakers increased further, at what separation distance will the cheering intensity again be at a maximum? include units)

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