A truck sounds a horn with a frequency of 115 Hz as it approaches a cliff. The speed of the truck is 10.5 m s–1. Given the speed of sound in air is 346 m s–1. (i) The truck driver hears the echo from the base of the cliff. Calculate the frequency heard by the truck driver.

A truck sounds a horn with a frequency of 115 Hz as it approaches a cliff. The speed of the truck is 10.5 m s–1. Given the speed of sound in air is 346 m s–1. (i) The truck driver hears the echo from the base of the cliff. Calculate the frequency heard by the truck driver.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter14: Sound

Section: Chapter Questions

Problem 29P: Two trains on separate tracks move toward each other. Train 1 has a speed of 1.30 102 km/h; train...

See similar textbooks

Related questions

Q: What frequency is received by a mouse just before being dispatched by a hawk flying at it at 30.0…

A: Given: The speed of the hawk is 30 m/s. The speed of the sound is 331 m/s. The frequency emitted by…

Q: A whistling train travels past a person standing still. The height of the tone of the whistle…

Q: Tripling the distance between sound source and a listener will change the intensity, as detected by…

Q: what length of open pipe will produce a frequency of 1200 Hz as it first overtone on a day when 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: A standard trumpet has a resonant tube length of 1.4 m and is closed at one end. What are the first…

A: A standard trumpet has a resonant tube of length is l=1.4 mThe tube is closed at one end.In this…

Q: Sound wave is passed through the loudspeaker so that the sound intensity increased by Lp=50 dB. How…

A: Given: Sound wave is passed through the loudspeaker so that the sound intensity increased by Lp=50…

Q: A guitar string made of steel has a length of 40cm and mass of 35gm.when used on a guitar ,a tension…

Q: A hiker shouts toward a cliff which is 360m away and hears his echo 2 seconds later. What is the…

A: solution: Given that d = 360 m t =2 s wavelength = 0.6 Thi

Q: A string with a linear mass density of μ = 0.0062 kg/m is stretched between two posts 1.30 m apart.…

A: Given:Tension in the string, FT =150.00 NLinear mass density, μ = 0.0062 kg/m stretched between two…

Q: A train moves towards you at a speed of 90.0 km/h as you stand on the platform. The train has a…

A: Given: Velocity of the train (vs) = 90 km/h = 25 m/s Velocity of sound (v) = 340 m/s Frequency of…

Q: a piano wire with mass 3.00 g and length 80.0 cm is stretched with a tension of 25.0 newton a wave…

A: If the amplitude is denoted by 'A' , mass is denoted by 'm' , length the wire is denoted by 'L' and…

Q: (III) When a player's finger presses a guitar string down onto a fret, the length of the vibrating…

A: Formula of fundamental frequency - f=v2l Where f = Frequency v = Speed l = Length Given values -…

Q: A microphone receiving a pure sound tone feeds an oscilloscope, producing a wave on its screen. If…

A: Given Data: The initial intensity of a sound is, Ii=2×10-5 W/m2 The amplitude increases the…

Q: Which one of the following would increase the speed of a sound wave in air? Increasing the…

A: When the temperature is increased , heat energy is supplied to the particles in the air medium ,…

Q: (III) A supersonic jet traveling at Mach 2.0 at an altitude of 9500 m passes directly over an…

Q: The predominant frequency of a certain fire truck's siren is 1370 HzHz when at rest. What frequency…

Q: By what factor must the amplitude of a sound wave be decreased in order to decrease the intensity by…

A: Intensity of the sound wave is directly proportional to the square of the amplitude of sound wave

Q: A single mosquito 5.0 m from a person makes a sound close to the threshold of human hearing (0 dB).…

A: The intensity of sound for 0 dB is 1×10-12 W/m2. One mosquito makes a sound intensity of I1=1×10-12…

Q: At a height of ten meters above the surface of a freshwater lake, a sound pulse is generated. The…

A: Consider the speed of sound in air be va, the speed of sound in water be vw, the depth of lake be d,…

Q: A siren mounted on the roof of a firehouse emits sound at a frequency of 900HZ .a steady wind is…

A: Given : f = 900 Hz vw = 15 m/s vs = 343 m/s

Q: With what tension must a rope with length 3.20 m and mass 0.120 kg be stretched for transverse waves…

Q: Suppose you want to build a musical instrument with a hollow pipe that is open at both ends. You…

Q: If the pressure amplitude of a sound wave is halved, by what factor does the intensity of the wave…

A: Given data: Initial pressure amplitude of the sound wave is, I Initial pressure amplitude is, p0…

Q: For a person with defective hearing ability, hearing aid is often required. Assume a hearing aid…

A: Given : the intensity of sound picked by hearing aid, I = 5.0 x 10-7 W/m2

Q: In music, two notes are said to be an octave apart when one note is exactly twice the frequency of…

A: We know that frequency is given by f=12LTu

Q: The coldest and hottest temperature ever recorded in the United States are -83 degrees Fahrenheit…

A: Given data The coldest temperature recorded in US is Tc = -83°F = 210 K The hottest temperature…

Q: An ambulance with a siren (f = 1.00kHz) blaring is approaching an accident scene. The ambulance is…

Q: Two waves of the same frequency have amplitudes 1.00 and 2.00. They interfere at a point where their…

Q: A source of sound waves of frequency 1.0 kHz is traveling through the air at 0.50 times the speed of…

A: when source of sound moves towards a stationary observer , the wavelength of sound received by her…

Q: A wave of wavelength 00 cm is produced in air and it travels at a speed of 300 ms. Will it be…

A: Given: The wavelength of the wave is 0.6 cm. The speed of the wave is 300 m/s.

Q: As a truck traveling at 96 km h- approaches and passes a person standing along the highway, the…

Q: A source of sound emits 5.0 mW of acoustic power uniformly in all directions. Calculate the…

Q: A train with a whistle that emits a note of frequency 800 Hz is approaching an observer at a speed…

Q: At what speed is an ambulance coming towards you if the actual and apparent frequencies are 10 and…

A: Actual Frequency, n= 10 HzApparent frequency , na= 12 HzSpeed of sound , v= 330 m/sobserver's speed,…

Q: At a distance of 5.20 m from a siren, the sound intensity is 4.07 x 102W/m?. Assuming that the siren…

Q: Calculate the length of a closed pipe resonator whose first harmonic is 250Hz. Assume that velocity…

A: The frequency of first harmonic is given by f = v4L where, v is the velocity of sound, L is the…

Q: Determine the frequencies of the first harmonics of the culvert if it is cylindrical in shape and…

Q: A cable with_a linear density of u = 0.210 kg/m is hung from telephone poles. The tension in the…

A: Given: The linear density is µ=0.210 kg/m. The tension in the cable is T=550 N. The distance…

Q: A 1-m long pipe is held vertically, its top end is open and its bottom end is closed. The length of…

A: The solution is below

Q: A person is standing on the side of a road when a car approaches them at 50 m/s while honking their…

Q: A small source emits sound waves with a power output of 80.0 W. a) b) 2. Find the intensity 3.00 m…

A: Given: The output power of the source is 80 W. Part (a): Here, the distance of the point from the…

Q: A string is strung horizontally with a fixed tension. A wave of frequency 60.0 Hz is sent along the…

A: Given that:- Tension in the string is fixed. And at frequency f=60Hz, wave speed=58.4m/s

Question

A truck sounds a horn with a frequency of 115 Hz as it approaches a cliff. The speed of the truck is 10.5 m s–1. Given the speed of sound in air is 346 m s–1.

(i) The truck driver hears the echo from the base of the cliff. Calculate the frequency heard by the truck driver.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

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?
An ambulance with a siren (f=1.00kHz) blaring is approaching an accident scene. The ambulance is moving at 70.00 mph. A nurse is approaching the scene from the opposite direction, running at vo=7.00 m/s. What frequency does the nurse observe? Assume the speed of sound is v=343.00 m/s.
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?
How many times a minute does a boat bob up and down on ocean waves that have a wavelength of 40.0 m and a propagation speed of 5.00 m/s?
Two trains on separate tracks move toward each other. Train 1 has a speed of 1.30 102 km/h; train 2, a speed of 90.0 km/h. Train 2 blows its horn, emitting a frequency of 5.00 102 Hz. What is the frequency heard by the engineer on train 1?
On a particular day the speed of sound in air is 340 m/s. If a plane flies at a speed of 680 m/s, is its Mach number (a) 1.5, (b) 2.0, (c) 2.5, or (d) 2.7?
The overall length of a piccolo is 32.0 cm. The resonating air column is open at both ends. (a) Find the frequency of the lowest note a piccolo can sound. (b) Opening holes in the side of a piccolo effectively shortens the length of the resonant column. Assume the highest note a piccolo can sound is 4 000 Hz. Find the distance between adjacent anti-nodes for this mode of vibration.
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?
A sound wave of a frequency of 2.00 kHz is produced by a string oscillating in the n=6 mode. The linear mass density of the string is =0.0065 kg/m and the length of the string is 1.50 m. What is the tension in the string?
A student holds an 80.00-cm lab pole one quarter of the length from the end of the pole. The lab pole is made of aluminum. The student strikes the lab pole with a hammer. The pole resonates at the lowest possible frequency. What is that frequency?
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?
Shown below are three waves that were sent down a string at different times. The tension in the string remains constant. (a) Rank the waves from the smallest wavelength to the largest wavelength. (b) Rank the waves from the lowest frequency to the highest frequency.