Two loudspeakers are located 4.17 m apart on an outdoor stage. A listener is 21.7 m from one and 23.2 m from the other. During the sound check, a signal generator drives the two speakers in phase with the same amplitude and frequency. The transmitted frequency is swept through the audible range (20 Hz to 20 kHz). (a) What is the lowest frequency fmin.1 that gives minimum signal (destructive interference) at the listener's location? By what number must fmin. 1 be multiplied to get (b) the second lowest frequency fmin.2 that gives minimum signal and (c) the third lowest frequency fmin.3 that gives minimum signal? (d) What is the lowest frequency fmax.1 that gives maximum signal (constructive interference) at the listener's location? By what number must fmax.1 be multiplied to get (e) the second lowest frequency fmax.2 that gives maximum signal and (f) the third lowest frequency fmax.3 that gives maximum signal? (Take the speed of sound to be 343 m/s.) (a) Number 114 Units Hz (b) Number 3 Units no units (c) Number 5 no units Units (d) Number Units Hz (e) Number no units Units (f) Number Units | no units

Two loudspeakers are located 4.17 m apart on an outdoor stage. A listener is 21.7 m from one and 23.2 m from the other. During the sound check, a signal generator drives the two speakers in phase with the same amplitude and frequency. The transmitted frequency is swept through the audible range (20 Hz to 20 kHz). (a) What is the lowest frequency fmin.1 that gives minimum signal (destructive interference) at the listener's location? By what number must fmin. 1 be multiplied to get (b) the second lowest frequency fmin.2 that gives minimum signal and (c) the third lowest frequency fmin.3 that gives minimum signal? (d) What is the lowest frequency fmax.1 that gives maximum signal (constructive interference) at the listener's location? By what number must fmax.1 be multiplied to get (e) the second lowest frequency fmax.2 that gives maximum signal and (f) the third lowest frequency fmax.3 that gives maximum signal? (Take the speed of sound to be 343 m/s.) (a) Number 114 Units Hz (b) Number 3 Units no units (c) Number 5 no units Units (d) Number Units Hz (e) Number no units Units (f) Number Units | no units

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter17: Sound Waves

Section: Chapter Questions

Problem 17.61AP: To measure her speed, a skydiver carries a buzzer emitting a steady tone at 1 800 Hz. A friend on...

See similar textbooks

Similar questions

If a large housefly 3.0 m away from you makes a noise of 40.0 dB, what is the noise level of 1000 flies at that distance, assuming interference has a negligible effect?
A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If the sound intensity is originally 2.00105W/m2 , but is turned up until the amplitude increases by 30.0% , what is the new intensity?
If the aluminum rod in Example 18.6 were free at both ends, what audible frequencies would be heard? Compare your results with the results of Example 18.6 and explain the difference.
To measure her speed, a skydiver carries a buzzer emitting a steady tone at 1 800 Hz. A friend on the ground at the landing site directly below listens to the amplified sound he receives. Assume the air is calm and the speed of sound is independent of altitude. While the skydiver is falling at terminal speed, her friend on the ground receives waves of frequency 2 150 Hz. (a) What is the skydivers speed of descent? (b) What If? Suppose the skydiver can hear the sound of the buzzer reflected from the ground. What frequency does she receive?
An 8-hour exposure to a sound intensity level of 90.0 dB may cause hearing damage. What energy in joules falls on a 0.800-cm-diameter eardrum so exposed?
Two sinusoidal waves are moving through a medium in the positive x-direction, both having amplitudes of 7.00 cm, a wave number of k=3.00 m-1, an angular frequency of =2.50 s-1, and a period of 6.00 s, but one has a phase shift of an angle =12 rad. What is the height of the resultant wave at a time t=2.00 s and a position x=0.53 m?
If a sound intensity level of 0 dB at 1000 Hz corresponds to a maximum gauge pressure (sound amplitude) of 10-9 atm , what is the maximum gauge pressure in a 60-dB sound? What is the maximum gauge pressure in a 120-dB sound?
A piano tuner hears a beat every 2.00 s when listening to a 264.0-Hz tuning fork and a single piano string. What are the two possible frequencies of the string?
Two loudspeakers are located 2.81 m apart on an outdoor stage. A listener is 24.5 m from one and 26.1 m from the other. During the sound check, a signal generator drives the two speakers in phase with the same amplitude and frequency. The transmitted frequency is swept through the audible range (20 Hz to 20 kHz). (a) What is the lowest frequency fmin.1 that gives minimum signal (destructive interference) at the listener's location? By what number must fmin,1 be multiplied to get (b) the second lowest frequency fmin. 2 that gives minimum signal and (c) the third lowest frequency fmin.3 that gives minimum signal? (d) What is the lowest frequency fmax,1 that gives maximum signal (constructive interference) at the listener's location? By what number must fmax.1 be multiplied to get (e) the second lowest frequency fmax,2 that gives maximum signal and (f) the third lowest frequency fmax.3 that gives maximum signal? (Take the speed of sound to be 343 m/s.) FULL S a sign- vest fre es min (a)…
Two loudspeakers are located 2.81 m apart on an outdoor stage. A listener is 24.5 m from one and 26.1 m from the other. During the sound check, a signal generator drives the two speakers in phase with the same amplitude and frequency. The transmitted frequency Is swept through the audible range (20 Hz to 20 kHz). (a) What is the lowest frequency fmin.1 that gives minimum signal (destructive interference) at the listener's location? By what number must fmin.1 be multiplied to get (b) the second lowest frequency fmin.2 that gives minimum signal and (c) the third lowest frequency fmin,3 that gives minimum signal? (d) What is the lowest frequency fmax,1 that gives maximum signal (constructive interference) at the listener's location? By what number must fmax,1 be multiplied to get (e) the second lowest frequency fmax.2 that gives maximum signal and (f) the third lowest frequency fmax.3 that gives maximum signal? (Take the speed of sound to be 343 m/s.) (a) Number Units +1 (b) Number *2…
Two loudspeakers are located 2.81 m apart on an outdoor stage. A listener is 24.5 m from one and 26.1 m from the other. During the sound check, a signal generator drives the two speakers in phase with the same amplitude and frequency. The transmitted frequency is swept through the audible range (20 Hz to 20 kHz). (a) What is the lowest frequency fmin,1 that gives minimum signal (destructive interference) at the listener's location? By what number must fmin,1 be multiplied to get (b) the second lowest frequency fmin.2 that gives minimum signal and (c) the third lowest frequency fmin,3 that gives minimum signal? (d) What is the lowest frequency fmax,1 that gives maximum signal (constructive interference) at the listener's location? By what number must fmax.1 be multiplied to get (e) the second lowest frequency fmax. 2 that gives maximum signal and (f) the third lowest frequency fmax.3 that gives maximum signal? (Take the speed of sound to be 343 m/s.) (a) Number +1 Units (b) Number *2…
Two loudspeakers are located 2.81m apart on an outdoor stage. A listener is 24.5 m from one and 26.1 m from the other. During the sound check, a signal generator drives the two speakers in phase with the same amplitude and frequency. The transmitted frequency is swept through the audible range (20 Hz to 20 kHz). (a) What is the lowest frequency fmin, that gives minimum signal (destructive interference) at the listener's location? By what number must fmin,1 be multiplied to get (b) the second lowest frequency fmin,2 that gives minimum signal and (c) the third lowest frequency fmin,3 that gives minimum signal? (d) What is the lowest frequency fmax.1 that gives maximum signal (constructive interference) at the listener's location? By what number must fmax.1 be multiplied to get (e) the second lowest frequency fmax,2 that gives maximum signal and (f) the third lowest frequency fmax.3 that gives maximum signal? (Take the speed of sound to be 343 m/s.) a VE es (a) Number T107.19 Units THz…