COLLEGE PHYSICS
2nd Edition
ISBN: 9781711470832
Author: OpenStax
Publisher: XANEDU
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 17, Problem 7TP
To determine
To refute the claim that two wave pulses travelling in opposite directions reflect off each other.
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
A speaker suspended high in the air, away from other objects, emits one spherical wave with total energy 5 J. Assume the waves travel at the speed of sound in air: 343 m/s. Draw the wave 2 seconds and 5 seconds after it was emitted. Label the total energy at each of these times. Label the energy per unit area for each of these times.
I would like to know how should I approach this problem when it comes to sound waves and how do I apply total energy in this problem?
Which of the following conditions guarantees that two overlapping waves will exhibit the property of interference?
O a. The waves must have the same frequencies.
O b. The waves must be sinusoidal.
O c. The waves must be coherent.
O d. The waves must be in phase.
O e. The waves must have the same amplitudes.
The Weber-Fechner law describes how human beings perceive differences. Suppose, for example, that a person first hears a tone with a frequency of 400 hertz (cycles per second). He is then tested with higher tones until he can hear the difference. The ratio between these values describes how well this person can hear differences. a. Suppose the next tone he can distinguish has a frequency of 404 hertz. What is the ratio? b. According to the Weber-Fechner law, the next higher tone will be greater than 404 by the same ratio. Find this tone. c. Write the discrete-time dynamical system for this person. d. Suppose the experiment is repeated on a musician, and she manages to distinguish 400.5 hertz from 400 hertz. What is the fifth tone she can distinguish?
Chapter 17 Solutions
COLLEGE PHYSICS
Ch. 17 - How do sound vibrations of atoms differ from...Ch. 17 - When sound passes from one medium to another where...Ch. 17 - Six members at a synchronized swim team weal...Ch. 17 - A community is concerned about a plan to bring...Ch. 17 - Is the Doppler shift real or just a sensory...Ch. 17 - Due to eficiency considerations related to its bow...Ch. 17 - When you hear a sonic boom, you often cannot see...Ch. 17 - How does an unamplified guitar produce sounds so...Ch. 17 - You are given two wind instruments of identical...Ch. 17 - What is the difference between an overtone and a...
Ch. 17 - Why can a hearing test show that your threshold of...Ch. 17 - If audible sound follows a rule of thumb similar...Ch. 17 - Elephants and whales are known to use infrasound...Ch. 17 - It is more difficult to obtain a high—resolution...Ch. 17 - Suppose you read mat 210dB ultrasound is being...Ch. 17 - When poked by a spear, an operatic soprano lets...Ch. 17 - What frequency sound has a 0.10m wavelength when...Ch. 17 - Calculate the speed of sound on a day when a 1500...Ch. 17 - Prob. 4PECh. 17 - Show mat 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 - A physicist a1 a fireworks display times the lag...Ch. 17 - Prob. 11PECh. 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 20°C 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 - Show that an intensity of 1012 W/m2 is the same as...Ch. 17 - (a) What is the decibel level of a sound that is...Ch. 17 - (a) What is the intensity of a sound that has a...Ch. 17 - (a) How much more intense is a sound that has a...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 8hour exposure to a sound intensity level of...Ch. 17 - (a) Ear trumpets were never very common, but they...Ch. 17 - Sound is more effectively transmitted into a...Ch. 17 - Loudspeakers can produce intense sounds with...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 200Hz 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 - What is the minimum speed at which a source must...Ch. 17 - A “showy" custom—built car has two brass horns...Ch. 17 - What beat frequencies will be present: (a) If the...Ch. 17 - What beat frequencies result if a piano hammer...Ch. 17 - A piano tuner hears a heat every 2.00 s when...Ch. 17 - (a) What is the fundamental frequency of a...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 fiute be in order to have a...Ch. 17 - What length should an oboe have to produce a...Ch. 17 - What is the length of a tube that has a...Ch. 17 - (a) Find the length of an organ pipe closed at one...Ch. 17 - By what fraction will the frequencies produced by...Ch. 17 - Prob. 50PECh. 17 - Calculate the first overtone in an ear canal,...Ch. 17 - Prob. 52PECh. 17 - (a) Students in a physics lab are asked to find...Ch. 17 - What frequencies will a 1.80-m—long tube produce...Ch. 17 - The factor of 1012 in the range of intensities to...Ch. 17 - The frequencies to which the ear responds vary by...Ch. 17 - What are the closest frequencies to 500 Hz that an...Ch. 17 - Can the average person tell that a 2002-Hz sound...Ch. 17 - If your radio is producing an average sound...Ch. 17 - Can you tell that your roommate turned up the...Ch. 17 - Prob. 61PECh. 17 - What sound intensity levels must sounds of...Ch. 17 - What is me approximate sound intensity level in...Ch. 17 - (a) What are the loudnesses in phons of sounds...Ch. 17 - Suppose a person has a 50—UB hearing loss at all...Ch. 17 - If a woman needs an amplification of 5.01012 times...Ch. 17 - (a) What is the intensity in watts per meter...Ch. 17 - (a) Find the intensity in watts per meter squared...Ch. 17 - A person has a hearing threshold 10 dB above...Ch. 17 - A child has a hearing loss of 60 dB near 5000 Hz,...Ch. 17 - What is the ratio of intensi?es of two sounds of...Ch. 17 - What is the sound intensity level in decibels of...Ch. 17 - Is 155—dB ultrasound in the range at intensities...Ch. 17 - Find the sound intensity level in decibels of...Ch. 17 - The time delay between transmission and the...Ch. 17 - Prob. 76PECh. 17 - (a) Calculate the minimum frequency of ultrasound...Ch. 17 - (a) Find the size of the smallest detail...Ch. 17 - (a) Echo times are measured by diagnostic...Ch. 17 - (a) How far apart are two layers of tissue that...Ch. 17 - (a) A bat uses ultrasound to find its way among...Ch. 17 - A dolphin is able to tell in the dark that the...Ch. 17 - A diagnostic ultrasound echo is re?ected from...Ch. 17 - Ultrasound reflected from an oncoming bloodstream...Ch. 17 - Prob. 1TPCh. 17 - Prob. 3TPCh. 17 - Prob. 4TPCh. 17 - Prob. 5TPCh. 17 - Prob. 6TPCh. 17 - Prob. 7TPCh. 17 - Prob. 8TPCh. 17 - Prob. 9TPCh. 17 - Prob. 10TPCh. 17 - Prob. 11TPCh. 17 - Prob. 12TPCh. 17 - Prob. 13TPCh. 17 - Prob. 15TPCh. 17 - Prob. 16TPCh. 17 - Prob. 17TPCh. 17 - Prob. 18TPCh. 17 - Prob. 19TPCh. 17 - Prob. 20TPCh. 17 - Prob. 21TPCh. 17 - Prob. 22TP
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
- 1. A plane has to drop a food package to refugees. It travels at 250 km/hour. If the mass of the package is 30 kg with what momentum will it hit the ground? 2. Find the frequency of a pendulum whose angular velocity is 350TT per second. 3. A transverse wave is propagating in a medium until it encounters another medium at an angle of incidence equal to 20°. As a result, it refracts at an angle of 30° from the horizontal. What is its initial speed if its refracted wavelength and frequency are 0.02 meters and 5 Hz respectively?arrow_forwardPart II. Application. Show all of your work in calculating the following variables. Include the given information with appropriate labels, unknown information, formula(s), substitutions, and correct answer with accurate units and significant figures. Helpful equations: T= 1/f v = f1 v = d/t f = v/2L 1. A wave on a guitar string has a velocity of 684m/s. The guitar string is 0.635m long. What is the fundamental frequency of the vibrating string?arrow_forwardIII: Solve/Answer the following problems. Show your solutions. 1. Suppose you want to increase the level of sound by 15.0 dB. Determine the factor to which the sound intensity must be increased. Explain your answer. 2. It is winter, and the temperature decrease to -5°C. Assume that the length of a certain steel bar is 10. O m. find the length of the steel bar during summer when the temperature is 40°C. (Thermal Expansion) 3. In a half-hour, a 65-kg jogger can generate 8.0x105J of heat. This heat is removed from the body by a variety of means, including the body's own temperature-regulating mechanisms. If the heat were not removed, how much would the body temperature increase? (Specific heat Capacity)arrow_forward
- There are two forms of waves: transverse and longitudinal. Let us assume we have two unit vectors, ej and e2, such that the first vector is parallel to the direction of wave propagation, while the second vector is parallel to the direction of disturbances in the wave. 1. Give the definition of transverse waves in terms of ej and e2. 2. Give an example of transverse waves in a vacuum. 3. Give the definition of longitudinal waves in terms of ej and e2. 4. Give an example of longitudinal waves in a medium. Select one or more: a. An example of longitudinal wave is the guitar string. b. An example of longitudinal wave is sound waves. O c. For a longitudinal wave ej || e2. O d. For a transverse wave ei O e. For a transverse wave ej || e2 f. Example of a transverse wave in vacuum is sound waves. g. For a longitudinal wave eí l eź. O h. Example of a transverse wave in vacuum is electromagnetic waves.arrow_forward1. Discuss the circular drumhead and the 2D wave equation is applicable. 2.solve the 2D wave equation on the drumhead, subject the boundary condition that the solution dont blow up at the origin and show that solutions go to zero on the edge of the drumhead. 3. show that the above boundary conditions give you standing wave patterns. 4. find pictures or better make plots of some of the standing wave patterns on the drumhead and discuss the solutions compare and contrast them with sines and cosines in rectangular case.arrow_forwardDirection. Select the BEST answer. Write the corresponding CAPITAL LETTER of your choice in a separate sheet of paper. Write E if you find no correct answer. Consider the figure in answering 1 - 4 D H Miny A E B F 1. Wavelength is the horizontal distance in the wave train. Determine the wavelength. A. A & D B. B & D C. D & G D. D & H 2. Which points are the crest? A. B & F B. G & L C. D & H D. C & G 3. Which points are the trough? A. B & F B. C & G C. D & H D. G & L 4. Which points are in-phase? A. A & C B. A & E C. B & H D. C & E 5. How many wavelengths are there from point A to point L? A. 1 λ Β. 1 λ C. 2 A D. 2 λarrow_forward
- 12.10. We will learn in Chapter 14 that brightness of light called its intensity I is inversely proportional to the square of the distance r² from the light source. a. As r increases what happens to r² (does it increase or decrease)? What then happens to I (does it increase or decrease)? b. Write an equation that relates the two variables I, r² using an unknown constant k. c. The intensity from a light source is 50 Watts/meter2 when observed from 2 meters away. What is the value and units of the proportionality constant. What is the equation that relates the two variables I, r² using an unknown constant k. d. What intensity do you expect to measure at 10 meters away?arrow_forwardA child sits on a rock and notices that 3 wavelengths crash ashore in 45 seconds. a) What is the frequency of the waves crashing ashore? b). What is the period of the waves in this scenario?arrow_forwardIn classical physics, one type of wave, called a plane wave, is represented mathematically as: V(r, t) = Ae(kr-wt). What is true about the vector k? I. It's magnitude is directly proportional to wavelength. II. It points in the direction of the wave propagation. II. It's magnitude is inversely proportional to the speed of wave. O I and III. I. O II. and III. O II.arrow_forward
- 1. On a hot summer day, a pesky little mosquito produced its warning sound near your ear. The sound is produced by the beating of its wings at a rate of about 600 wing beats per second.a. What is the frequency in Hz of the sound wave? b. Assuming the sound wave moves with a velocity of 350 m/s, what is the wavelength of the wave? 2. Playing middle C on the piano keyboard produces a sound with a frequency of 256 Hz. Assuming the speed of sound in air is 345 m/s, determine the wavelength of the sound corresponding to the note of middle C. 3. Air temperature in the Sahara Desert can reach 56.0 degree Celsius. What is the speed of sound in air at that temperature?arrow_forwardJeremiah was investigating different aspects of sound waves. He listened to two sounds. Sound 1 had a lower pitch than Sound 2. Based on this information, how was Sound Wave 1 different from Sound Wave 2? O A. Sound Wave 1 had a smaller amplitude than Sound Wave 2. B. Sound Wave 1 had a shorter wavelength than Sound Wave 2. C. Sound Wave 1 had a slower speed than Sound Wave 2. D. Sound Wave 1 had a lower frequency than Sound Wave 2.arrow_forwardWhich of the following statements correctly describe dispersive waves? O a. In the dispersion relation a =ck, the velocity of the propagating wave is independent of the wave number k. b. In the dispersion relation w =ck, the frequency of the propagating wave is depending on the wavelegth 2. O c. In the dispersion relation )=ck the velocity of the propagating wave is depending on the wave number d. In the dispersion relation w =ck, the frequency of the propagating wave is independent of the wavelength À.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
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305952300/9781305952300_smallCoverImage.gif)
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9780133969290/9780133969290_smallCoverImage.gif)
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
![Text book image](https://www.bartleby.com/isbn_cover_images/9781107189638/9781107189638_smallCoverImage.jpg)
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337553278/9781337553278_smallCoverImage.gif)
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9780321820464/9780321820464_smallCoverImage.gif)
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
![Text book image](https://www.bartleby.com/isbn_cover_images/9780134609034/9780134609034_smallCoverImage.gif)
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON