*111. Go ssm A speedboat, starting from rest, moves along a straight line away from a dock. The boat has a constant acceleration of +3.00 m/s? (see the figure). Attached to the dock is a siren that is producing a 755-Hz tone. If the air temperature is 20 °C, what is the frequency of the sound heard by a person on the boat when the boat's displacement from the dock is +45.0 m? Siren +3.00 m/s? +x +45.0 m

Q: 2. An ambulance travels down a straight section of highway at a speed of 120 km/h, its siren…

A: Given: The speed of the ambulance is v=120 km/h. The frequency of sound of siren is f=500 Hz. The…

Q: Assume a change at the source of sound reduces the wavelength of a sound wave in air by a factor of…

A: It is given that the source of sound reduces the wavelength of a sound wave in air by a factor of…

Q: Consider a sound wave moving through the air modeled with the equation s(x, t) = 5.00 nm cos(59.00…

A:

Q: Two waves produce the following displacements on the same string: yi = 24.0 mm sin(-1.25mx + 9nt) y2…

A:

Q: Consider the superposition of three wave functions y(x, t) = 3.00 cm sin (2 m−1 x − 3 s−1 t), y(x,…

A:

Q: D. E. 9 18. The frequency of a fire truck's siren is 1600 Hz. What frequeney do you observe if you…

A:

Q: A  progressive wave travelling in the x-direction is represented by the following equation:   y = A…

A:

Q: ***30 Use the wave equation to find the speed of a wave given in terms of the general function h(x,…

A:

Q: Which one of the following statements is not correct? A) The response of the ear to sound of…

A: The sensitivity of the human ear  vary with the frequency of the sound. the ear has maximum…

Q: Since the ambulance is the source of the sound, let v represent the magnitude of the velocity of the…

A: in this question we determine speed of source.

Q: You approach a stationary sound source with a speed such that the frequency of sound you hear is 17%…

A:

Q: A supersonic jet traveling at Mach 3.00 at an altitude of h = 2.00 x 104 m is directly over a person…

A: a). Formula to calculate the half-angle of the conical wave front is,

Q: An Indycar(TM) emits a sound at 225 Hz as it races down a straightaway with a velocity of 98 m/s. A…

A: The perceived frequency heard by the observer is given by the relation of the Doppler effect for…

Q: The wavefunction of a mechanical wave on a string is described by: y(x.t) =…

A:

Q: . What is the frequency of the first harmonic in a closed end air column with a length of .172…

A: given that  length of closed organ pipe  L = 0.172 m velocity of sound = 340 m/s first harmonic L =λ…

Q: 6: A police car is chasing a speeding Porsche 911. Assume that the Porsche’s maximum speed is 110…

A:

Q: A factory siren indicating the end of a shift has a frequency of 80 Hz. What frequency is perceived…

A:

Q: Two waves are traveling in the same medium and described by the following wave functions: y 1 =0.01…

A: The wave equations for the two traveling waves are: y1=0.01 msin(0.3πx+20t)…

Q: Sonar emits ultrasound at a frequency of 30 kHz, which propagates rapidly in water at a speed of…

A:

Q: In the "Western" films, the actors can be seen putting their ears to a rail to see if the the train…

A: 1. The time taken by the sound to propagate through air is given by, Δair=dvair Here, d is the…

Q: A sound wave propagates in air at 21°C with frequency 4.50 kHz. It passes through a region where the…

A: Given: A sound wave propagates in air 210 c with a frequency 4.50 kHz. It passes through a region…

Q: The intensity of the sound in the rock concert is 2.0×10-3 W/m2.  What is the power over the area of…

A: Intensity(I) is defined as power(P) per unit area(A) of a wave. I = P/A

Q: A certain string, clamped at both ends, vibrates in seven segments at a frequency of 719 Hz. What…

A:

Q: •9 If the form of a sound wave traveling through air is s (x, t) = (6.0 nm) cos (ka + (3000 rad /s)t…

A:

Q: What happens to a sound source that is passing by at constant speed? A. The sound and pitch vary…

A: Sound source is passing at constant speed

Q: > A point source emits sound isotropically. At a distance of 3.00 m from the source, the sound level…

A:

Q: If a plane is flying at a speed so that the apex half-angle of its shockwave is 30°, what is its…

A:

Q: A sound wave of the form s = Sm cos(kx - wt + p) travels at 344 m/s through air in a long horizontal…

A: Given v=344m/s s=6.00nm , x=2.03m s=2.30 nm , x=2.08 m Since s is max at x=2.03 m, then sm=6.00nm…

Q: Use the wave equation to find the speed of a wave given by ylx, t) = (2.08 mm)[(22 m²)x- (4.0…

A:

Q: A speaker produces 100 (w) of power. If the speaker projects sound uniformly into the forward…

A: Given  Power of the speaker is P=100 W Distance is d=4 m Find the intensity of sound.

Q: | A wave is modeled with the function y(x,t) = (0.25m)cos(0.30m-lx-0.90s-t+r/3). Find (a) the…

A:

Q: Consider a sound wave modeled with the equation s(x, t) = 4.00 nm cos (3.66 m−1 x − 1256 s−1 t).…

A:

Q: Consider a sound wave moving through the air modeled with the equation s(x, t) = 3.00 nm cos(55.00…

A: Given:      Sx,t=3nmcos55m-1x-14×103s-1tHere wave number k=55 m-1       And…

Q: An ambulance traveling eastbound at 104.0 km/h with sirens blaring at a frequency of 6.00 ✕ 102 Hz…

A: speed of sound v = 343m/s Speed of ambulance va = 104km/h = (104×5)/18 m/s = 28.89 m/s Speed of car…

Q: ou like to listen to music at a sound intensity of 3.3×10−53.3×10−5 W/m2. What is the intensity…

A: Given: The intesity of the sound is 3.3x10-5 W/m2. The intensity of the threshold hearing is 1x10-12…

Q: How can it be shown that the speed of sound in 20.0o C air is 343 m/s. Air temperature in the Sahara…

A: The speed of sound in air in terms of temperature can be expressed as follows

Q: A submarine is lying motionless underwater and detects an underwater sound coming from a moving…

A: The Doppler's effect is given by  f' =v - vov - vsf where, f is the true frequency, v is the…

Q: You approach a stationary sound source with a speed such that the frequency of sound you hear is 13%…

A: Given,

Q: A tranverse wave in a medium wave is described by the following equation: y(x,t) = (12 m)cos(3.0x -…

A: Given   y(x,t) = (12 m)cos(3.0x - 120t)

Q: car traveling south at 36 m/s sounds a 456 Hz horn. What frequency is heard by the truck driver if…

A:

Q: A boat sounds a fog horn on a day when both the sea water and the air temperature are 25.0° C. The…

A: The correct option is (c) .  i.e 2.24s

Q: A pin with a mass of 0.15 g falls from rest on a table 1.0 m high. Upon hitting the ground, 0.02 %…

A: Given: Mass (m) = 0.15 g = 0.15 x 10 -3 kg  Height (h)  = 1 m  Time (t) = 0.10 s

Q: Two waves travelling in the same direction are given by: y1 = 0.2 sin(2Ttx-20t+p) and y2 = 0.2…

A: The correct option is  1/2 m

Q: The siren emits sound with a frequency of 600 Hz. What is the wavelength of the sound? What…

A: Given data:  Frequency of sound (f) = 600 Hz Speed of listener (Vo ) = 10 m/s

Q: What frequency of sound is observed if the 444 Hz source is traveling away from a stationary…

A: Given data:  Frequency of source (f) = 444 Hz Speed of source (vs) = 30.2 m/s, away from observer…

Q: Two eagles fly directly toward one another, the first at 15.0 m/s and the second at 21.0 m/s. Both…

A:

Q: 10. What is the frequency heard by a stationary observer when a train approaches with a speed of…

A: