The figure below shows an overhead view of two identical sound sources that are a distance of D = 2.74 meters apart and they are each sending out sound waves in air which is at a temperature of 21.52°C. The angle 0 is indicated A person (the third circle in the figure), walks around a semicircle having its center at the midpoint between the two speakers. If the person hears no sound when the angle 0 in the figure is 0 = 60°, determine the minimum frequency of the sound waves coming from the sources.
The figure below shows an overhead view of two identical sound sources that are a distance of D = 2.74 meters apart and they are each sending out sound waves in air which is at a temperature of 21.52°C. The angle 0 is indicated A person (the third circle in the figure), walks around a semicircle having its center at the midpoint between the two speakers. If the person hears no sound when the angle 0 in the figure is 0 = 60°, determine the minimum frequency of the sound waves coming from the sources.
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Transcribed Image Text:The figure below shows an overhead view of two identical sound sources that are a
distance of D = 2.74 meters apart and they are each sending out sound waves in air which
is at a temperature of 21.52°C.
The angle 0 is indicated
A person (the third circle in the figure), walks around a semicircle having its center at the
midpoint between the two speakers. If the person hears no sound when the angle 0 in the
figure is 0 = 60°, determine the minimum frequency of the sound waves coming from the
sources.
(a) 172 Hz
(b) 222 Hz
(c) 272 Hz
(d) 322 Hz
(e) 372 Hz
(f) None of the above.
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