An aircraft maintenance technician walks past a tall hangar door that acts like a single slit for sound entering the hangar. Outside the door, on a line perpendicular to the opening in the door, a jet engine makes a 575 Hz sound. At what angle with the door will the technician observe the first minimum in sound intensity if the vertical opening is 0.790 m wide and the speed of sound is 340 m/s?
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A:
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Q: A) iii
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