Problem 1Q: In a first experiment, a sinusoidal sound wave is sent through a long tube of air. transporting... Problem 2Q: In Fig. 17-25, two point sources S1, and S2, which are in phase, emit identical sound waves of... Problem 3Q: In Fig. 17-26, three long tubes A,B, and C are filled with different gases under different... Problem 4Q Problem 5Q: In Fig. 17-27, pipe A is made to oscillate in its third harmonic by a small internal sound source.... Problem 6Q Problem 7Q: Figure 17-28 shows a moving sound source S that emits at a certain frequency, and four stationary... Problem 8Q Problem 9Q: For a particular tube, here are four of the six harmonic frequencies below 1000 Hz: 300, 600, 750,... Problem 10Q Problem 11Q: You are given four tuning forks. The fork with the lowest frequency oscillates at 500 Hz. By... Problem 1P: Two spectators at a soccer game see, and a moment later hear, the ball being kicked on the playing... Problem 2P: What is the bulk modulus of oxygen if 32.0 g of oxygen occupies 22.4 L and the speed of sound in the... Problem 3P Problem 4P: A column of soldiers, marching at 120 paces per minute, keep in step with the beat of a drummer at... Problem 5P Problem 6P: A man strikes one end of a thin rod with a hammer. The speed of sound in the rod is 15 times the... Problem 7P: SSM WWW A stone is dropped into a well. The splash is heard 3.00 s later. What is the depth of the... Problem 8P: GO Hot chocolate effect. Tap a metal spoon inside a mug of water and note the frequency fi you hear.... Problem 9P: If the form of a sound wave traveling through air is sx, t = 6.0 nm cos kx 3000 rad/st , how much... Problem 10P Problem 11P: SSM Diagnostic ultrasound of frequency 4.50 MHz is used to examine tumors in soft tissue. a What is... Problem 12P: The pressure in a traveling sound wave is given by the equation p = 1.50 Pa sin 0.900 m1 x 315 s1t.... Problem 13P: A sound wave of the form s = sm coskx t travels at 343 m/s through air in a long horizontal tube.... Problem 14P: Figure 17-32 shows the output from a pressure monitor mounted at a point along the path taken by a... Problem 15P: GO A handclap on stage in an amphitheater sends out sound waves that scatter from terraces of width... Problem 16P: Two sound waves, from two different sources with the same frequency, 540 Hz, travel in the same... Problem 17P Problem 18P Problem 19P: GO Figure 17-35 shows two isotropic point sources of sound, S1 and S2. The sources emit waves in... Problem 20P: Figure 17-36 shows four isotropic point sources of sound that are uniformly spaced on an x axis. The... Problem 21P: SSM In Fig. 17-37, two speakers separated by distance d1 = 2.00 m are in phase. Assume the... Problem 22P: In Fig. 17-38, sound with a 40.0 cm wavelength travels rightward from a source and through a tube... Problem 23P: GO Figure 17-39 shows two point sources S1 and S2 that emit sound of wavelength = 2.00 m. The... Problem 24P: Suppose that the sound level of a conversation is initially at an angry 70 dB and then drops to a... Problem 25P: A sound wave of frequency 300Hz has an intensity of 1.00 W/m2. What is the amplitude of the air... Problem 26P Problem 27P: SSM WWW A certain sound source is increased in sound level by 30.0 dB. By what multiple is a its... Problem 28P: Two sounds differ in sound level by 1.00 dB. What is the ratio of the greater intensity to the... Problem 29P Problem 30P: The source of a sound wave has a power of 1.00 W. If it is a point source, a what is the intensity... Problem 31P: GO When you crack a knuckle, you suddenly widen the knuckle cavity, allowing more volume for the... Problem 32P: Approximately a third of people with normal hearing have ears that continuously emit a low-intensity... Problem 33P: Male Rana catesbeiana bullfrogs arc known for their loud mating call. The call is emitted not by the... Problem 34P: GO Two atmospheric sound sources A and B emit isotropically at constant power. The sound levels of... Problem 35P: A point source emits 30.0 W of sound isotropically. A small microphone intercepts the sound in an... Problem 36P: Party hearing. As the number of people at a party increases, you must raise your voice for a... Problem 37P Problem 38P: The water level in a vertical glass tube 1.00 m long can be adjusted to any position in the tube. A... Problem 39P Problem 40P: Organ pipe A, with both ends open, has a fundamental frequency of 300 Hz. The third harmonic of... Problem 41P: A violin siring 15.0 cm long and fixed at both ends oscillates in its n = 1 mode. The speed of waves... Problem 42P: A sound wave in a fluid medium is reflected at a barrier so that a standing wave is formed. The... Problem 43P: SSM In Fig. 17-41, S is a small loudspeaker driven by an audio oscillator with a frequency that is... Problem 44P: The crest of a Parasaurolophus dinosaur skull is shaped somewhat like a trombone and contains a... Problem 45P: In pipe A, the ratio of a particular harmonic frequency to the next lower harmonic frequency is 1.2.... Problem 46P: GO Pipe A. which is 1.20 m long and open at both ends, oscillates at its third lowest harmonic... Problem 47P: A well with vertical sides and water at the bottom resonates at 7.00 Hz and at no lower frequency.... Problem 48P: One of the harmonic frequencies of tube A with two open ends is 325 Hz. The next-highest harmonic... Problem 49P: SSM A violin string 30.0 cm long with linear density 0.650 g/m is placed near a loudspeaker that is... Problem 50P Problem 51P: The A string of a violin is a little too tightly stretched Beats at 4.00 per second are heard when... Problem 52P: A tuning fork of unknown frequency makes 3.00 beats per second with was standard fork of frequency... Problem 53P: SSM Two identical piano wires have a fundamental frequency of 600 Hz when kept under the same... Problem 54P: You have five tuning forks that oscillate at close but different resonant frequencies. What are the... Problem 55P Problem 56P: An ambulance with a siren emitting a whine at 1600 Hz overtakes and passes a cyclist pedaling a bike... Problem 57P: A state trooper chases a speeder along a straight road: both vehicles move at 160 km/h. The siren on... Problem 58P Problem 59P: GO In Fig. 17-42, a French submarine and a U.S. submarine move toward each other during maneuvers in... Problem 60P: A stationary motion detector sends sound waves of frequency 0.150 MHz toward a truck approaching at... Problem 61P: GO A bat is flitting about in a cave, navigating via ultrasonic bleeps. Assume that the sound... Problem 62P: Figure 17-43 shows four tubes with lengths 1.0 m or 2.0 m, with one or two open ends as drawn. The... Problem 63P: ILWAn acoustic burglar alarm consists of a source emitting waves of frequency 28.0 kHz. What is the... Problem 64P: A stationary detector measures the frequency of a sound source that first moves at constant velocity... Problem 65P: GO A 2000 Hz siren and a civil defense official are both at rest with respect to the ground. What... Problem 66P: GO Two trains are traveling toward each other at 30.5 m/s relative to the ground. One train is... Problem 67P: SSM WWWA girl is sitting near the open window of a train that is moving at a velocity of 10.00 m/s... Problem 68P Problem 69P: SSMA jet plane passes over you at a height of 5000 m and a speed of Mach 1.5. a Find the Mach cone... Problem 70P: A plane flies at 1.25 times the speed of sound. Its sonic boom reaches a man on the ground 1.00 min... Problem 71P: At a distance of 10 km, a 100 Hz horn, assumed to be an isotropic point source, is barely audible.... Problem 72P: A bullet is fired with a speed of 685 m/s. Find the angle made by the shock cone with the line of... Problem 73P Problem 74P: The average density of Earths crust 10 km beneath the continents is 2.7 g/cm3. The speed of... Problem 75P: A certain loudspeaker system emits sound isotropically with a frequency of 2000 Hz and an intensity... Problem 76P: Find the ratios greater to smaller of the a intensities, b pressure amplitudes, and c particle... Problem 77P Problem 78P: A trumpet player on a moving railroad flatcar moves toward a second trumpet player standing... Problem 79P: GO In Fig. 17-46, sound of wavelength 0.850 m is emitted isotropically by point source S. Sound ray... Problem 80P: GO A detector initially moves at constant velocity directly toward a stationary sound source and... Problem 81P: SSMa If two sound waves, one in air and one in fresh water, are equal in intensity and angular... Problem 82P: A continuous sinusoidal longitudinal wave is sent along a very long coiled spring from an attached... Problem 83P: SSMUltrasound, which consists of sound waves with frequencies above the human audible range, can be... Problem 84P: The speed of sound in a certain metal is vm. One end of a long pipe of that metal of length L is... Problem 85P: An avalanche of sand along some rare desert sand dunes can produce a booming that is loud enough to... Problem 86P: A sound source moves along an x axis, between detectors A and B. The wavelength of the sound... Problem 87P: SSMA siren emitting a sound of frequency 1000 Hz moves away from you toward the face of a cliff at a... Problem 88P Problem 89P Problem 90P Problem 91P Problem 92P: You can estimate your distance from a lightning stroke by counting the seconds between the flash you... Problem 93P: SSMFigure 17-48 shows an air-filled, acoustic interferometer, used to demonstrate the interference... Problem 94P Problem 95P: SSMThe sound intensity is 0.0080 W/m2 at a distance of 10 m from an isotropic point source of sound.... Problem 96P: Four sound waves are to be sent through the same tube of air, in the same direction: s1x, t = 9.00... Problem 97P Problem 98P: A point source that is stationary on an x axis emits a sinusoidal sound wave at a frequency of 686... Problem 99P: You are standing at a distance D from an isotropic point source of sound. You walk 50.0 m toward the... Problem 100P: Pipe A has only one open end; pipe B is four times as long and has two open ends. Of the lowest 10... Problem 101P: A pipe 0.60 m long and closed at one end is filled with an unknown gas. The third lowest harmonic... Problem 102P: A sound wave travels out uniformly in all directions from a point source. a Justify the following... Problem 103P: A police car is chasing a speeding Porsche 911. Assume that the Porsches maximum speed is 80.0 m/s... Problem 104P: Suppose a spherical loudspeaker emits sound isotropically at 10 W into a room with completely... Problem 105P: In Fig. 17-35. S1 and S2 are two isotropic point sources of sound. They emit waves in phase at... Problem 106P Problem 107P: Kundts method for measuring the speed of sound. In Fig. 17-51. a rod R is clamped at its center; a... Problem 108P Problem 109P: In Fig. 17-53, a point source S of sound waves lies near a reflecting wall AB. A sound detector D... Problem 110P: A person on a railroad car blows a trumpet note at 440 Hz. The car is moving toward a wall at 20.0... Problem 111P: A listener at rest with respect to the air and the ground hears a signal of frequency f1, from a... format_list_bulleted