Two audio speakers are side by side, 1 meter apart. They are connected to the same amplifier, which is producing a sine wave of 440 hertz (“concert A”). Calculate a direction in which you won't hear...

Two audio speakers are side by side, 1 meter apart. They are connected to the same amplifier, which is producing a sine

wave of 440 hertz (“concert A”). Calculate a direction in which you won't hear anything, and make a diagram showing the

speakers and this direction. (The speed of sound in air is about 340 m/s.)