A sound source is located somewhere along the x-axis. Experiments show that the same wave front simultaneously reaches listeners at x = ─7.0 m and x = ＋3.0 m.a. What is the x-coordinate of the source?

Two small stereo speakers are driven in step by the same variable-frequency oscillator. Their sound is picked up by a microphone arranged as shown in

Fig. E16.39. For what frequencies does their sound at the speakers produce (a) constructive interference

Two loudspeakers, A and B (Fig. E16.35)

, are driven by the same amplifier and emit sinusoidal waves in phase. Speaker B is 2.00 m to the right of speaker A. Consider point Q along the extension of the line connecting the speakers, 1.00 m to the right of speaker B. Both speakers emit sound waves that travel directly from the speaker to point Q. What is the lowest frequency for which (b) destructive interference occurs at point Q?

Two loudspeakers, A and B (Fig. E16.35)

, are driven by the same amplifier and emit sinusoidal waves in phase. Speaker B is 2.00 m to the right of speaker A. Consider point Q along the extension of the line connecting the speakers, 1.00 m to the right of speaker B. Both speakers emit sound waves that travel directly from the speaker to point Q. What is the lowest frequency for which (a) constructive interference occurs at point Q

What are the sound intensity levels for sound waves of intensity(a) 3.0 x 10⁻⁶ W/m²?

The three identical loudspeakers in FIGURE P17.71 play a 170 Hz tone in a room where the speed of sound is 340 m/s . You are standing 4.0 m in front of the middle speaker. At this point, the amplitude of the wave from each speaker is a.

c. When the amplitude is maximum, by what factor is the sound intensity greater than the sound intensity from a single speaker?

The three identical loudspeakers in FIGURE P17.71 play a 170 Hz tone in a room where the speed of sound is 340 m/s . You are standing 4.0 m in front of the middle speaker. At this point, the amplitude of the wave from each speaker is a. b. How far must speaker 2 be moved to the left to produce a maximum amplitude at the point where you are standing?

FIGURE EX17.27 shows the circular wave fronts emitted by two wave sources. b. Make a table with rows labeled P, Q, and R and columns labeled r1 ,r2 , Δr , and C/D. Fill in the table for points P, Q, and R, giving the distances as multiples of λ and indicating, with a C or a D, whether the interference at that point is constructive or destructive.

Two speakers, emitting identical sound waves of wavelength 2.0 m in phase with each other, and an observer are located as shown in

Fig. E35.5. (a) At the observer's location, what is the path difference for waves from the two speakers?