University Physics Volume 1
18th Edition
ISBN: 9781938168277
Author: William Moebs, Samuel J. Ling, Jeff Sanny
Publisher: OpenStax - Rice University
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 17, Problem 120P
The frequency of the siren of an ambulance is 900 Hz and is approaching you. You are standing on a corner and observe a frequency of 960 Hz. What is the speed of the ambulance (in mph) if the speed of sound is
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
If a stationary dolphin emits a call at a sound frequency of 53 kHz. The sound wave reflects off a fish moving directly towards the dolphin. And the sound wave echo returns at a frequency of 55 kHz. What is the speed of the fish? The speed of sound is 343 m/s.
On a 20°C°C night, a bat hovering in the air emits an ultrasonic chirp that has a
frequency of 45 kHzkHz. It hears an echo 60 msms later.
Suppose the object is an insect flying straight away from the bat. What is the
insect's speed if the ultrasonic echo is shifted down in frequency by 750 Hz?
A bat flying at 5.20 m/s is chasing an insect flying in the same direction. The bat emits a 39.8-kHz chirp and receives back an echo at 40.6 kHz. (Take the speed of sound in air to be v = 343 m/s.)
(a) What is the speed of the insect? ?m/s(b) Will the bat be able to catch the insect?
Yes or No
Explain.
Chapter 17 Solutions
University Physics Volume 1
Ch. 17 - Check Your Understanding Imagine you observe two...Ch. 17 - Check Your Understanding Identify common sounds at...Ch. 17 - Check Your Understanding Describe how amplitude is...Ch. 17 - Check Your Understanding If you walk around two...Ch. 17 - Check Your Understanding Describe how...Ch. 17 - Check Your Understanding How is it possible to use...Ch. 17 - Check Your Understanding You observe two musical...Ch. 17 - Check Your Understanding What would happen if more...Ch. 17 - Check Your Understanding Describe a situation in...Ch. 17 - What is the difference between sound and hearing?
Ch. 17 - You will learn that light is an electromagnetic...Ch. 17 - Sound waves can be modeled as a change in...Ch. 17 - How do sound vibrations of atoms differ from...Ch. 17 - When sound passes from one medium to another where...Ch. 17 - A popular party trick is to inhale helium and...Ch. 17 - You may have used a sonic range finder in lab to...Ch. 17 - The sonic range finder discussed in the preceding...Ch. 17 - Six members of a synchronized swim team wear...Ch. 17 - A community is concerned about a plan to bring...Ch. 17 - You are given two wind instruments of identical...Ch. 17 - What is the difference between an overtone and a...Ch. 17 - Two identical columns, open at both ends, are in...Ch. 17 - How does an unamplified guitar produce sounds so...Ch. 17 - Consider three pipes of the same length (L). Pipe...Ch. 17 - Pipe A has a length L and is open at both ends....Ch. 17 - A string is tied between two lab posts a distance...Ch. 17 - Two speakers are attached to variable-frequency...Ch. 17 - The label has been scratched off a tuning fork and...Ch. 17 - Referring to the preceding question, if you had...Ch. 17 - A “showy” custom-built car has two brass horns...Ch. 17 - Is the Doppler shift real or just a sensory...Ch. 17 - Three stationary observers observe the Doppler...Ch. 17 - Shown below is a stationary source and moving...Ch. 17 - Prior to 1980, conventional radar was used by...Ch. 17 - What is the difference between a sonic boom and a...Ch. 17 - Due to efficiency considerations related to its...Ch. 17 - When you hear a sonic boom, you often cannot see...Ch. 17 - Consider a sound wave modeled with the equation...Ch. 17 - Consider a sound wave moving through the air...Ch. 17 - Consider a diagnostic ultrasound of frequency 5.00...Ch. 17 - A sound wave is modeled as...Ch. 17 - A sound wave is modeled with the wave function...Ch. 17 - The displacement of the air molecules in sound...Ch. 17 - A speaker is placed at the opening of a long...Ch. 17 - A 250-Hz tuning fork is struck and begins to...Ch. 17 - A sound wave produced by an ultrasonic transducer,...Ch. 17 - Porpoises emit sound waves that they use for...Ch. 17 - Bats use sound waves to catch insects. Bats can...Ch. 17 - A bat sends of a sound wave 100 kHz and the sound...Ch. 17 - Consider the graph shown below of a compression...Ch. 17 - Consider the graph in the preceding problem of a...Ch. 17 - A guitar string oscillates at a frequency of 100...Ch. 17 - When poked by a spear, an operatic soprano lets...Ch. 17 - What frequency sound has a 0.10-m wavelength when...Ch. 17 - Calculate the speed of sound on a day when a...Ch. 17 - (a) What is the speed of sound in a medium where a...Ch. 17 - Show that the speed of sound in 20.0°C air is 343...Ch. 17 - Air temperature in the Sahara Desert can reach...Ch. 17 - Dolphins make sounds in air and water. What is the...Ch. 17 - A sonar echo returns to a submarine 1.20 s after...Ch. 17 - (a) If a submarine’s sonar can measure echo times...Ch. 17 - Ultrasonic sound waves are often used in methods...Ch. 17 - A physicist at a fireworks display times the lag...Ch. 17 - During a 4th of July celebration, an M80 firework...Ch. 17 - The density of a sample of water is =998.00kg/m3...Ch. 17 - Suppose a bat uses sound echoes to locate its...Ch. 17 - What is the intensity in watts per meter squared...Ch. 17 - The warning tag on a lawn mower states that it...Ch. 17 - A sound wave traveling in air has a pressure...Ch. 17 - What intensity level does the sound in the...Ch. 17 - What sound intensity level in dB is produced by...Ch. 17 - What is the decibel level of a sound that is twice...Ch. 17 - What is the intensity of a sound that has a level...Ch. 17 - People with good hearing can perceive sounds as...Ch. 17 - If a large housefly 3.0 m away from you makes a...Ch. 17 - Ten cars in a circle at a boom box competition...Ch. 17 - The amplitude of a sound wave is measured in terms...Ch. 17 - If a sound intensity level of 0 dB at 1000 Hz...Ch. 17 - An 8-hour exposure to a sound intensity level of...Ch. 17 - Sound is more effectively transmitted into a...Ch. 17 - Loudspeakers can produce intense sounds with...Ch. 17 - The factor of 10-12 in the range of intensities to...Ch. 17 - What are the closest frequencies to 500 Hz that an...Ch. 17 - YY13Can you tell that your roommate turned up the...Ch. 17 - If a woman needs an amplification of 5.0105 times...Ch. 17 - A person has a hearing threshold 10 dB above...Ch. 17 - (a) What is the fundamental frequency of a...Ch. 17 - What is the length of a tube that has a...Ch. 17 - The ear canal resonates like a tube closed at one...Ch. 17 - Calculate the first overtone in an ear canal,...Ch. 17 - A crude approximation of voice production is to...Ch. 17 - A 4.0-m-long pipe, open at one end and closed at...Ch. 17 - A 4.0-m-long pipe, open at both ends, is placed in...Ch. 17 - A nylon guitar string is fixed between two lab...Ch. 17 - A 512-Hz tuning fork is struck and placed next to...Ch. 17 - Students in a physics lab are asked to find the...Ch. 17 - If a wind instrument, such as a tuba, has a...Ch. 17 - What are the first three overtones of a bassoon...Ch. 17 - How long must a flute be in order to have a...Ch. 17 - What length should an oboe have to produce a...Ch. 17 - (a) Find the length of an organ pipe closed at one...Ch. 17 - An organ pipe (L=3.00m) is closed at both ends....Ch. 17 - An organ pipe (L=3.00m) is closed at one end....Ch. 17 - A sound wave of a frequency of 2.00 kHz is...Ch. 17 - Consider the sound created by resonating the tube...Ch. 17 - A student holds an 80.00-cm lab pole one quarter...Ch. 17 - A string on the violin has a length of 24.00 cm...Ch. 17 - By what fraction will the frequencies produced by...Ch. 17 - What beat frequencies are present: (a) If the...Ch. 17 - What beat frequencies result if a piano hammer...Ch. 17 - A piano tuner hears a beat every 2.00 s when...Ch. 17 - Two identical strings, of identical lengths of...Ch. 17 - A piano tuner uses a 512-Hz tuning fork to tune a...Ch. 17 - A string with a linear mass density of =0.0062...Ch. 17 - A car has two horns, one emitting a frequency of...Ch. 17 - The middle C hammer of a piano hits two strings,...Ch. 17 - Two tuning forks having frequencies of 460 and 464...Ch. 17 - Twin jet engines on an airplane are producing an...Ch. 17 - Three adjacent keys on a piano (F, F-sharp, and G)...Ch. 17 - (a) What frequency is received by a person...Ch. 17 - (a) At an air show a jet flies directly toward the...Ch. 17 - What frequency is received by a mouse just before...Ch. 17 - A spectator at a parade receives an 888-Hz tone...Ch. 17 - A commuter train blows its 200-Hz horn as it...Ch. 17 - Can you perceive the shift in frequency produced...Ch. 17 - Two eagles fly directly toward one another, the...Ch. 17 - Student A runs down the hallway of the school at a...Ch. 17 - An ambulance with a siren (f=1.00kHz) blaring is...Ch. 17 - The frequency of the siren of an ambulance is 900...Ch. 17 - What is the minimum speed at which a source must...Ch. 17 - An airplane is flying at Mach 1.50 at an altitude...Ch. 17 - A jet flying at an altitude of 8.50 km has a speed...Ch. 17 - The shock wave off the front of a fighter jet has...Ch. 17 - A plane is flying at Mach 1.2, and an observer on...Ch. 17 - A bullet is fired and moves at a speed of 1342...Ch. 17 - A speaker is placed at the opening of a long...Ch. 17 - An airplane moves at Mach 1.2 and produces a shock...Ch. 17 - A 0.80-m-long tube is opened at both ends. The air...Ch. 17 - A tube filled with water has a valve at the bottom...Ch. 17 - Consider the following figure. The length of the...Ch. 17 - Early Doppler shift experiments were conducted...Ch. 17 - Two cars move toward one another, both sounding...Ch. 17 - Student A runs after Student B. Student A carries...Ch. 17 - Suppose that the sound level from a source is 75...Ch. 17 - The Doppler shift for a Doppler radar is found by...Ch. 17 - A stationary observer hears a frequency of 1000.00...Ch. 17 - A flute plays a note with a frequency of 600 Hz....Ch. 17 - Two sound speakers are separated by a distance d,...Ch. 17 - Consider the beats shown below. This is a graph of...Ch. 17 - Two speakers producing the same frequency of sound...Ch. 17 - A string has a length of 1.5 m, a linear mass...Ch. 17 - A string (=0.006kgm,L=1.50m) is fixed at both ends...Ch. 17 - A string has a linear mass density µ, a length L,...Ch. 17 - A string has a linear mass density =0.007 kg/m, a...Ch. 17 - A speaker powered by a signal generator is used to...Ch. 17 - A string on the violin has a length of 23.00 cm...
Additional Science Textbook Solutions
Find more solutions based on key concepts
4.43 BIO Insect Dynamics. The froghopper (Philaenus spumarius), the champion leaper of the insect world, has a ...
University Physics with Modern Physics (14th Edition)
A thin plate has a round hole whose diameter in its rest frame is D. The plate is parallel to the ground and mo...
Modern Physics
Choose the best answer to each of the following. Explain your reasoning. The luminosity of a quasar is generate...
Cosmic Perspective Fundamentals
24.28 For the capacitor net-work shown in Fig. E24.28, the potential difference across ab is 48 V. Find (a) th...
University Physics (14th Edition)
The pressure at 4.5 m below the surface of the water.
Physics (5th Edition)
3. What is free-fall, and why does it make you weightless? Briefly describe why astronauts are weightless in th...
The Cosmic Perspective (8th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A bat flying at 4.60 m/s is chasing an insect flying in the same direction. The bat emits a 39.9-kHz chirp and receives back an echo at 40.6 kHz. (Take the speed of sound in air to be v = 343 m/s.) (a) What is the speed of the insect? m/s(b) Will the bat be able to catch the insect? YesNo Explain.arrow_forwardA bat uses echolocation to detect prey as small as about 1 wavelength of the sound of a bat call. Assume a bat produces a sound with a frequency of 60.9 kHz, and the speed of sound in air is 339 m/s. What is the length in mm of the smallest prey the bat can detect?arrow_forwardYou are in auto traveling at 44 m/s toward a pole-mounted warning siren. If the siren's frequency is 431 Hz, what frequency do you hear? Use 343 m/s as the speed of sound. No need to include the unit. Write your answer in whole numbers.arrow_forward
- A bat flying at 4.65 m/s is chasing an insect flying in the same direction. The bat emits a 39.9-kHz chirp and receives back an echo at 40.6 kHz. (Take the speed of sound in air to be v = 343 m/s.) (a) What is the speed of the insect?arrow_forwardA spaceship is approaching a space station at a speed of 1.60 ✕ 105 m/s. The space station has a beacon that emits green light with a frequency of 5.94 ✕ 1014 Hz. (a) What is the frequency of the beacon observed on the spaceship? (Use c = 2.9979 ✕ 108 m/s for the speed of light. Enter your answer to at least five significant figures.)answer in Hzarrow_forwardA jogger hears a car alarm and decides to investigate. While running toward the car, she hears an alarm frequency of 868.5 Hz. After passing the car, she hears the alarm at a frequency of 844.5 Hz. If the speed of sound is 343 m/s. 1)Calculate the speed of the jogger. (Express your answer to three significant figures.)arrow_forward
- A mother hawk screeches as she dives at you. You recall from biology that female hawks screech at 792 HzHz, but you hear the screech at 883 HzHz. How fast is the hawk approaching?arrow_forwardYellow light travels through a certain glass block at a speed of 1.97 ✕ 108 m/s. The wavelength of the light in this particular type of glass is 3.835 ✕ 10-7 m. What is the frequency of the yellow light? Hz.arrow_forwardThere was an accident, and NASA engineers are trying to sort out where two of their Mars Rovers, Tango and Foxtrot, have landed. The engineers know that landing site A is much hotter than landing site B. Unfortunately, the only working sensors on Tango and Foxtrot measure the speed of sound. If Tango measures the speed of sound at its landing site as 240 m/s, while Foxtrot measures speed of sound as 258 m/s at its landing site, where has each rover landed?arrow_forward
- There was an accident and NASA engineers are trying to sort out where two of their Mars Rovers (named 'Tango' and 'Foxtrot') have landed. The engineers know that landing site A is much hotter than landing site B. Unfortunately, the only working sensors on Tango and Foxtrot measure the speed of sound. If Tango measures the speed of sound at its landing site as 240 m/s, while Foxtrot measures speed of sound as 258 m/s at its landing site, where has each rover landed? Tango landed at site A while Foxtrot landed at site B. Tango landed at site B while Foxtrot landed at site A. Both Tango and Foxtrot landed at site A. O Both Tango and Foxtrot landed at site B.arrow_forwardA bat emits a sound at a frequency of 39.0 kHz as it approaches a wall. The bat detects beats with a frequancy of 1070 Hz between the sound it emits and the echo bouncing from the wall. What is the speed of the bat (in m/s) if the speed of sound in air is 343 m/s?arrow_forwardChapter 17, Problem 059 SN x Incorrect. A French submarine and a U.S. submarine move toward each other during maneuvers in motionless water in the North Atlantic (see the figure). The French sub moves at speed vF, and the U.S. sub at speed vus. The French sub sends out a sonar signal (sound wave in water) at frequency f. Sonar waves travel at speed v. (a) What is the signal's frequency as detected by the U.S. sub? (b) What frequency is detected by the French sub in the signal reflected back to it by the U.S. sub? State your answers in terms of the given variables. French U.S. VF VUS (a) fus = レーV」 v+Vf (b) fr = f ..arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
What Are Sound Wave Properties? | Physics in Motion; Author: GPB Education;https://www.youtube.com/watch?v=GW6_U553sK8;License: Standard YouTube License, CC-BY