(Bulk modulus)B = 2.18 x 10° N/m?density of water p = 1.00 × 10³ kg/m³(reference intensity)ann (threshold of hearing)Q s peed of sound in air v = 343 m/sIo = 10-12 w/m²22.0 mThe driverboat whistle lingShovidnearThesoundOTTheabove thelead surface divectly with the driver in thetimeSamefriendthegrondthatfrom the ship22, o mand he hear daOnawaythe boat whistlingat the sane time asin the picture the boat whistleisabove from the surface of the water. The teme perature1.2of thelead is20°cQue tions :Consider the jour hey of sound in the air from the dolltheboatto the water have dis tance1. 2 m.Comaswhich take0.00 25 secondthenthesoundcontin uesto travel in thewater. Findtimewhenthe soundtrave ls inthe war fer down to the driver.

Bulk modulus of water (B) = 2.18×109 Nm2density of water (ρ) = 1000 kgm3speed of sound in air (v) =…

Answered: B = 2.18 x 10° N/m² (Bulk modulus)…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter17: Traveling Waves

Section: Chapter Questions

Problem 30PQ

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Similar questions

A sound wave in air has a pressure amplitude equal to 4.00 103 Pa. Calculate the displacement amplitude of the wave at a frequency of 10.0 kHz.
A cable with a linear density of =0.2 kg/m is hung from telephone poles. The tension in the cable is 500.00 N. The distance between poles is 20 meters. The wind blows across the line, causing the cable resonate. A standing waves pattern is produced that has 4.5 wavelengths between the two poles. The air temperature is T=20C . What are the frequency and wavelength of the hum?
The bulk modulus of water is 2.2 109 Pa (Table 15.2). The density of water is 103 kg/m3 (Table 15.1). Find the speed of sound in water and compare your answer with the value given in Table 17.1.
The area of a typical eardrum is about 5.00 X 10-5 m2. (a) (Calculate the average sound power incident on an eardrum at the threshold of pain, which corresponds to an intensity of 1.00 W/m2. (b) How much energy is transferred to the eardrum exposed to this sound lor 1.00 mill?
A siren mounted 011 the roof of a firehouse emits sound at a frequency of 900 Hz. A steady wind is blowing with a speed of 15.0 m/s. Taking the speed of sound in calm air to be 343 m/s. find the wavelength of the sound (a) upwind of the siren and (b) downwind of the siren. Firefighters are approaching the siren from various directions at 15.0 m/s. What frequency does a firefighter hear (c) if she is approaching from an upwind position so that site is moving in the direction in which the wind is blowing and (d) if she is approaching from a downwind position and moving against the wind?
Consider the experimental setup shown below. The length of the string between the string vibrator and the pulley is L=1.00 m. The linear density of the string is =0.006 kg/m. The string vibrator can oscillate at any frequency. The hanging mass is 2.00 kg. (a)What are the wavelength and frequency of n=6 mode? (b) The string oscillates the air around the string. What is the wavelength of the sound if the speed of the sound is vs=343.00 m/s?
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?
Sound waves can be modeled as a change in pressure. Why is the change in pressure used and not the actual pressure?
A sound wave moves down a cylinder as in Active Figure 13.19. Show that the pressure variation of the wave is described by P=smax2s2, where s = s(x, t) is given by Equation 13.25.
A string with a linear mass density of =0.0062 kg/m is stretched between two posts 1.30 m apart. The tension in the string is 150.00 N. The string oscillates and produces a sound wave. A 1024-Hz tuning fork is struck and the beat frequency between the two sources is 52.83 Hz. What are the possible frequency and wavelength of the wave on the string?
Show that the speed of sound in 20.0°C air is 343 m/s, as claimed in the text.
A piano tuner uses a 512-Hz tuning fork to tune a piano. He strikes the fork and hits a key on the piano and hears a beat frequency of 5 Hz. He tightens the string of the piano, and repeats the procedure. Once again he hears a beat frequency of 5 Hz. What happened?

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