A seated musician plays an F3 note at 185 Hz. How much time At does it take for 796 air pressure maxima to pass a stationary listener? At = S You would like to express the air pressure oscillations at a point in space in the given form. P (t) = Pmax COs (Bt) If t is measured in seconds, what value should the quantity B have? B =

A seated musician plays an F3 note at 185 Hz. How much time At does it take for 796 air pressure maxima to pass a stationary listener? At = S You would like to express the air pressure oscillations at a point in space in the given form. P (t) = Pmax COs (Bt) If t is measured in seconds, what value should the quantity B have? B =

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter17: Sound

Section: Chapter Questions

Problem 85P: A nylon guitar string is fixed between two lab posts 2.00 m apart. The string has a linear mass...

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Similar questions

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?
Consider the graph in the preceding problem of a compression wave. Shown are snapshots of the wave function for t=0.000 s (blue) and t=0.005 s (orange). Given that the displacement of the molecule at time t=0.00 s and position x=0.00 m is s(0.00m,0.00s)=1.08mm , derive a wave function to model the compression wave.
A bat sends of a sound wave 100 kHz and the sound waves travel through air at a speed of v=343 m/s. (a) If the maximum pressure difference is 1.30 Pa, what is a wave function that would model the sound wave, assuming the wave is sinusoidal? (Assume the phase shift is zero.) (b) What are the period and wavelength of the sound wave?
An organ pipe (L=3.00m) is closed at both ends. Compute the wavelengths and frequencies of the first three modes of resonance. Assume the speed of sound is v=343.00 m/s.
Consider the superposition of three wave functions y(x,t)=3.00cmsin(2m1x3s1t) , y(x,t)=3.00cmsin(6m1x+3s1t) , and y(x,t)=3.00cmsin(2m1x4s1t) . What is the height of the resulting wave at position x=3.00 m at time t=10.0 s?
An organ pipe (L=3.00m) is closed at one end. Compute the wavelengths and frequencies of the first three modes of resonance. Assume the speed of sound is v=343.00 m/s.
During a 4th of July celebration, an M80 firework explodes on the ground, producing a bright flash and a loud bang. The air temperature of the night air is TF=90.00F . Two observers see the flash and hear the bang. The first observer notes the time between the flash and the bang as 1.00 second. The second observer notes the difference as 3.00 seconds. The line of sight between the two observers meet at a right angle as shown below. What is the distance x between the two observers?
Porpoises emit sound waves that they use for navigation. If the wavelength of the sound wave emitted is 4.5 cm, and the speed of sound in the water is v=1530 m/s, what is the period of the sound?
The ear canal resonates like a tube closed at one end. (See [link]Figure 17_03_HumEar[/link].) If ear canals range in length from 1.80 to 2.60 cm in an average population, what is the range of fundamental resonant frequencies? Take air temperature to be 37.0°C, which is the same as body temperature.
Consider two wave functions that differ only by a phase shift, y1(x,t)=Acos(kxt) and y2(x,t)=Acos(kxt+) . Use the trigonometric cosu+cosv=2cos(uv2)cos(u+v2) and cos()=cos() to find a wave equation for the wave resulting from the superposition of the two waves. Does the resulting wave function come as a surprise to you?
Can you perceive the shift in frequency produced when you pull a tuning fork toward you at 10.0 m/s on a day when the speed of sound is 344 m/s? To answer this question, calculate the factor by which the frequency shifts and see if it is greater than 0.300%.
Check Your Understanding The equations for the wavelengths and the frequencies of the modes of a wave produced on a string: n=2nLn=1,2,3,4,5...andn=nv2L=nf1n=1,2,3,4,5... were derived by considering a wave on a string where there were symmetric boundary conditions of a node at each end. These modes resulted from two sinusoidal waves with identical characteristics except they were moving in opposite directions, confined to a region L with nodes required at both ends.Will the same equations work if there were symmetric boundary conditions with antinodes at each end? What would the normal modes look like for a medium that was free to oscillate on each end? Don’t worry for now if you cannot imagine such a medium, just consider two sinusoidal wave functions in a region of length L, with antinodes on each end.