College Physics: A Strategic Approach (3rd Edition)
3rd Edition
ISBN: 9780321879721
Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 16, Problem 10CQ
A friend’s voice sounds different over the telephone than it does in person. This is because telephones do not transmit frequencies over about 3000 Hz. 3000 Hz is well above the normal frequency of speech, so why does eliminating these high frequencies change the sound of a person’s voice?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The intensity of a sound wave emitted by a radio is 5.00 µW/m2. What is the sound level (in dB)?
The range of audible frequencies is from about 20 Hz to 20,000 Hz. What is the range of the wavelengths of audible sound in air? (b) Visible light. The range of visible light extends from 380 nm to 750 nm. What is the range of visible frequencies of light? (c) Brain surgery. Surgeons can remove brain tumors by using a cavitron ultrasonic surgical aspirator, which produces sound waves of frequency 23 kHz. What is the wavelength of these waves in air? (d) Sound in the body. What would be the wavelength of the sound in part (c) in bodily fluids in which the speed of sound is 1480 m>s but the frequency is unchanged?
Find the range of wavelengths emitted by the bat in meters, by using that the speed of sound is c=343m/sec and the range of frequencies from 70 to 30KHz. The solution matches the range of sizes for an insect. What is the order of magnitude for this range? Take this order and call it L for the average size of an insect.
b) If the bat produces a power of P = 10^-5 watts and its hearing threshold is 10^-12 watts/m^2 what is the maximum distance from which the bat can detect an echo?
Chapter 16 Solutions
College Physics: A Strategic Approach (3rd Edition)
Ch. 16 - Light can pass easily through water and through...Ch. 16 - Ocean waves are partially reflected from the...Ch. 16 - A string has an abrupt change in linear density at...Ch. 16 - A guitarist finds that the pitch of one of her...Ch. 16 - Certain illnesses inflame your vocal cords,...Ch. 16 - Figure Q16.6 shows a standing wave on a string...Ch. 16 - Figure Q16.7 shows a standing sound wave in a tube...Ch. 16 - A typical flute is about 66 cm long. A piccolo is...Ch. 16 - Some pipes on a pipe organ are open at both ends,...Ch. 16 - A friends voice sounds different over the...
Ch. 16 - Suppose you were to play a trumpet after breathing...Ch. 16 - If you pour liquid in a tall, narrow glass, you...Ch. 16 - When you speak after breathing helium, in which...Ch. 16 - Sopranos can sing notes at very high...Ch. 16 - A synthesizer is a keyboard instrument that can be...Ch. 16 - If a cold gives you a stuffed-up nose, it changes...Ch. 16 - A small boy and a grown woman both speak at...Ch. 16 - At x = 3 cm, what is the earliest time that y will...Ch. 16 - Two sinusoidal waves with the same amplitude A and...Ch. 16 - A student in her physics lab measures the...Ch. 16 - Prob. 23MCQCh. 16 - Resonances of the ear canal lead to increased...Ch. 16 - The frequency of the lowest standing-wave mode on...Ch. 16 - Suppose you pluck a string on a guitar and it...Ch. 16 - Figure P16.11 is a snapshot graph at t = 0 s of...Ch. 16 - Figure P16.2 is a snapshot graph at t = 0 s of two...Ch. 16 - Figure P16.3a is a snapshot graph at t = 0 s of...Ch. 16 - Figure P16.4 is a snapshot graph at t = 0 s of two...Ch. 16 - Figure P16.4 is a snapshot graph at t = 0 s of two...Ch. 16 - Figure P16.6 is a snapshot graph at t = 0 s of a...Ch. 16 - At t = 0 s, a small upward (positive y) pulse...Ch. 16 - You are holding one end of an elastic cord that is...Ch. 16 - A 2.0-m-long string is fixed at both ends and...Ch. 16 - Figure P16.10 shows a standing wave oscillating at...Ch. 16 - A bass guitar string is 89 cm long with a...Ch. 16 - Prob. 12PCh. 16 - a. What are the three longest wavelengths for...Ch. 16 - A 121-cm-long, 4.00 g string oscillates in its m =...Ch. 16 - Prob. 15PCh. 16 - A violin string has a standard length of 32.8 cm....Ch. 16 - The lowest note on a grand piano has a frequency...Ch. 16 - An experimenter finds that standing waves on a...Ch. 16 - Ocean waves of wavelength 26 m are moving directly...Ch. 16 - Prob. 20PCh. 16 - The contrabassoon is the wind instrument capable...Ch. 16 - Figure P16.22 shows a standing sound wave in an...Ch. 16 - Prob. 23PCh. 16 - An organ pipe is made to play a low note at 27.5...Ch. 16 - The speed of sound in room temperature (20C) air...Ch. 16 - Parasaurolophus was a dinosaur whose...Ch. 16 - A drainage pipe running under a freeway is 30.0 m...Ch. 16 - Some pipe organs create sounds lower than humans...Ch. 16 - Although the vocal tract is quite complicated, we...Ch. 16 - You know that you sound better when you sing in...Ch. 16 - A child has an ear canal that is 1.3 cm long. At...Ch. 16 - When a sound wave travels directly toward a hard...Ch. 16 - The first formant of your vocal system can be...Ch. 16 - When you voice the vowel sound in hat, you narrow...Ch. 16 - The first and second formants when you make an ee...Ch. 16 - Two loudspeakers in a 20C room emit 686 Hz sound...Ch. 16 - Two loudspeakers emit sound waves along the...Ch. 16 - In noisy factory environments, its possible to use...Ch. 16 - Two identical loudspeakers separated by distance d...Ch. 16 - Two identical loudspeakers 2.0 m apart are...Ch. 16 - Prob. 42PCh. 16 - Musicians can use beats to tune their instruments....Ch. 16 - A student waiting at a stoplight notices that her...Ch. 16 - Two strings are adjusted to vibrate at exactly 200...Ch. 16 - A childs train whistle replicates a classic...Ch. 16 - A flute player hears four beats per second when...Ch. 16 - Prob. 48GPCh. 16 - In addition to producing images, ultrasound can be...Ch. 16 - An 80-cm-long steel string with a linear density...Ch. 16 - Tendons are, essentially, elastic cords stretched...Ch. 16 - A string, stretched between two fixed posts, forms...Ch. 16 - Spiders may tune strands of their webs to give...Ch. 16 - Prob. 54GPCh. 16 - Prob. 55GPCh. 16 - Lake Erie is prone to remarkable seichesstanding...Ch. 16 - Prob. 57GPCh. 16 - Prob. 58GPCh. 16 - A 40-cm-long tube has a 40-cm-long insert that can...Ch. 16 - The width of a particular microwave oven is...Ch. 16 - Two loudspeakers located along the x-axis as shown...Ch. 16 - Two loudspeakers 42.0 m apart and facing each...Ch. 16 - You are standing 2.50 m directly in front of one...Ch. 16 - Two loudspeakers, 4.0 m apart and facing each...Ch. 16 - Piano tuners tune pianos by listening to the beats...Ch. 16 - A flutist assembles her flute in a room where the...Ch. 16 - A Doppler blood flowmeter emits ultrasound at a...Ch. 16 - An ultrasound unit is being used to measure a...Ch. 16 - Prob. 70MSPPCh. 16 - Prob. 71MSPPCh. 16 - Prob. 72MSPPCh. 16 - Prob. 73MSPP
Additional Science Textbook Solutions
Find more solutions based on key concepts
Explain all answers clearly, with complete sentences and proper essay structure if needed. An asterisk (*) desi...
Cosmic Perspective Fundamentals
30 (Il) Calculate the electric field at the center of a square 42.5 cm on a side if one corner is occupied by a...
Physics: Principles with Applications
24. The 1.0 kg block in FIGURE EX7.24 is tied to the wall with a rope. It sits on top of the 2.0 kg block. The ...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
The diagram shows Bob’s view of the passing of two identical spaceships. Anna’s and his own, where v=2 . The le...
Modern Physics
Explain all answer clearly, with complete sentences and proper essay structure if needed. An asterisk (*) desig...
The Cosmic Perspective Fundamentals (2nd Edition)
1. The frequency of a light wave in air is 5.3 × 1014 Hz. Is the frequency of this wave higher, lower, or the s...
College Physics: A Strategic Approach (4th 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
- Some studies suggest that the upper frequency limit of hearing is determined by the diameter of the eardrum. The wavelength of the sound wave and the diameter of the eardrum are approximately equal at this upper limit. If the relationship holds exactly, what is the diameter of the eardrum of a person capable of hearing 20 000 Hz? (Assume a body temperature of 37.0C.)arrow_forwardAs you travel down the highway in your car, an ambulance approaches you from the rear at a high speed (Fig. OQ13.15) sounding its siren at a frequency of 500 Hz. Which statement is correct? (a) You hear a frequency less than 500 Hz. (b) You hear a frequency equal to 500 Hz. (c) You hear a frequency greater than 500 Hz. (d) You hear a frequency greater than 500 Hz, whereas the ambulance driver hears a frequency lower than 500 Hz. (e) You hear a frequency less than 500 Hz, whereas the ambulance driver hears a frequency of 500 Hz. Figure OQ13.15arrow_forwardA 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?arrow_forward
- 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.arrow_forwardThe 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?arrow_forwardShow that an intensity of 1012 W/m2 is the same as 1016 W/cm2.arrow_forward
- Based on the graph in Figure 17.36, what is the threshold of hearing in decibels for frequencies of 60, 400, 1000, 4000, and 15,000 Hz? Note that many AC electrical appliances produce 60 Hz, music is commonly 400 Hz, a reference frequency is 1000 Hz, your maximum sensitivity is near 4000 Hz, and many older TVs produce a 15,750 Hz whine. Figure 17.36 The relationship of loudness in phons to intensity level (in decibels) and intensity (in watts per meter squared) for persons with normal hearing. The curved lines are equal-loudness curves—all sounds on a given curve are perceived as equally loud. Phons and decibels are defined to be the same at 1000 Hz.arrow_forwardA sound wave traveling in air has a pressure amplitude of 0.5 Pa. What is the intensity of the wave?arrow_forwardWhat is the sound level of a sound wave with intensity 6.40 105 W/m2?arrow_forward
- What frequency is received by a mouse just before being dispatched by a hawk flying at it at 25.0 m/s and emitting a screech of frequency 3500 Hz? Take the Speed of sound to be 331 m/s.arrow_forwardSubmarine A travels horizontally at 11.0 m/s through ocean water. It emits a sonar signal of frequency f = 5.27 103 Hz in the forward direction. Submarine B is in front of submarine A and traveling at 3.00 m/s relative to the water in the same direction as submarine A. A crewman in submarine B uses his equipment to detect the sound waves (pings) from submarine A. We wish to determine what is heard by the crewman in submarine B. (a) An observer on which submarine detects a frequency f as described by Equation 16.46? (b) In Equation 16.46, should the sign of vs be positive or negative? (c) In Equation 16.46, should the sign of vo be positive or negative? (d) In Equation 16.46, what speed of sound should be used? (e) Find the frequency of the sound detected by the crewman on submarine B.arrow_forwardA tuning fork is known to vibrate with frequency 262 Hz. When it is sounded along with a mandolin siring, four beats are heard every second. Next, a bit of tape is put onto each line of the tuning fork, and the tuning fork now produces five beats per second with the same mandolin siring. What is the frequency of the string? (a) 257 Hz (b) 258 Hz (c) 262 Hz (d) 266 Hz (e) 267 Hzarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
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