12. The figure shows two loudspeakers (A) and (B), and a point (C) where a listener is positioned. The speakers vibrate in phase and are playing a 66.0 Hz tone. The speed of sound is 343 m/s. The listener at point (C) hears the third farthest loud sound (excluding infinity) at a distance 7.00 m as measured from speaker (A). What is the separation (d) between the two speakers? m

12. The figure shows two loudspeakers (A) and (B), and a point (C) where a listener is positioned. The speakers vibrate in phase and are playing a 66.0 Hz tone. The speed of sound is 343 m/s. The listener at point (C) hears the third farthest loud sound (excluding infinity) at a distance 7.00 m as measured from speaker (A). What is the separation (d) between the two speakers? m

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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8. Three friends x,y,z are standing in a line at equal distance of 1m. Person y is standing exactly in front of the speakers with a 3m distance from the center point of the speakers. The speakers are producing signals of same frequency and are 0.8 m apart. Signals of some frequencies are horrible for y and barely audible for x and z. Find the lowest frequencies creating this effect. Assuming velocity of sound as 340m/s
2. Speakers A and B are vibrating out of phase. They are directly facing each other, are 6.60 m apart, and are each playing a 140 Hz tone. The speed of sound is 338 m/s. On the line between the speakers there are points where minimum sound intensity occurs. What is the distance of the nearest point from speaker A? 0.89 On fourth Attempt = 0.25 0.886 m 156 ac2156 ac2156 A L₁ c2156 ac2156 C8156) L₂ B Show my other submissions 156 ac2156 ac2156 acc 56 ac2156 ac215
Don't copy from chegg.
Find the range of wavelengths emitted by the bat in meters, by using that the speed of sound is c=343m/sec and the range of frequencies from 70 to 30KHz. The solution matches the range of sizes for an insect. What is the order of magnitude for this range? Take this order and call it L for the average size of an insect. b) If the bat produces a power of P = 10^-5 watts and its hearing threshold is 10^-12 watts/m^2 what is the maximum distance from which the bat can detect an echo?
In each of the four scenarios shown in the images, a large bat lets out a short burst of ultrasonic sound, which a smaller bat hears a moment later. If the large bat flies at 2.320 m/s and the small bat flies at 13.80 m/s, order the frequencies that the smaller bat detects in the four scenarios from highest to lowest. Assume that the speed of sound is 343.0 m/s. Highest frequency A D B. A B C Lowest frequency Answer Bank In Scenario C, part of the large bat's signal reflects off the small bat and returns to the large bat, warning it of the smaller bat's presence. If the initial signal has a frequency of 66.70 kHz, what return frequency fr will the large bat detect? Calculate the final frequency to four significant figures. fr Incorrect kHz Ꭰ
Two loudspeakers, 1.7 m apart, emit sound waves with the same frequency along the positive x-axis. Victor, standing on the axis to the right of the speakers, hears no sound. As the frequency is slowly tripled, Victor hears the sound go through the sequence loud-soft-loud-soft-loud before becoming quiet again. What was the original sound frequency? Assume room temperature of 20∘C.
Need help with this one. It's about frequencies
Two students are standing the same distance from a source of sound. The first student receives a power of 68 × 10-6 W in their eardrum. The second student receives σ = 1.2 times more power in their eardrum. What is the ratio of the diameters of the students eardrums? d1/d2= If the second students eardrums have a diameter of d=1cm what was the intensity of the sound that the student heard in watts per square meter? I=
3) Two speakers are placed side by side, 4 meters apart and driven by the same frequency of 680 Hz. If the perpendicular distance from a person to one speaker is 3.0 m, is this a quiet spot or a loud spot? Explain your reasoning. The sound speed in the room is 340 m/s. (
The figure shows two loudspeakers (A) and (B), and a point (C) where a listener is positioned. The speakers vibrate inphase and are playing a 66.0 Hz tone. The speed of sound is 343 m/s. The listener at point (C) hears the first farthestloud sound (excluding infinity) at a distance 6.50 m as measured from speaker (A). What is the separation (d) betweenthe two speakers?
The figure shows two loudspeakers (A) and (B), and a point (C) where a listener is positioned. The speakers vibrate inphase and are playing a 67.0 Hz tone. The speed of sound is 343 m/s. The listener at point (C) hears the second farthestloud sound (excluding infinity) at a distance 4.00 m as measured from speaker (A). What is the separation (d) betweenthe two speakers?
18. A sound wave s(r, t) = sm Cos(ka – wt +o) travels at 343 m/s through air in a long horizontal tube. At one instant, air molecule A at r = 2.00 m is at its maximum positive displacement of 6.0 nm and air molecule B at r = a positive displacement of 1.5 nm. All the molecules between A and B arc at intermediate displacements. What is the 2.05 m is at frequency of the wave? (1) 1400 Hz (2) 1300 Hz (3) 1200 Hz (4) 1100 Hz (5) 1000 Hz