Problem 6 - GPS W2 Two speakers (see Figure) are separated by a distance d=1m and emit sound wave of frequency f=1kHz. (in air, sound = 340 m/s). The speakers are considered as point sources. (a) Calculate the smallest angle theta for constructive interferences. (b) If D=30m, at what locations z should an observer stands to hear constructive interferences (i.e. maximum sound)? (c) At what locations z should observers stand to hear no sound. CE-d sine E Z

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