Physics for Scientists and Engineers with Modern Physics, Technology Update
9th Edition
ISBN: 9781305401969
Author: SERWAY, Raymond A.; Jewett, John W.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 17, Problem 52AP
(a)
To determine
The sound power output of the loud speaker.
(b)
To determine
The efficiency of the speaker.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
What is the minimum power required for a loudspeaker to produce 109 dB sound at a distance of 10.9 m in any direction?
The power output of a certain public-address speaker is 6.00 W. Suppose it broadcasts equally in all directions. (a) Within what distance from the speaker would the sound be painful to the ear? (b) At what distance from the speakerwould the sound be barely audible?
The power output of a certain public address speaker is 6.8 W. Suppose it broadcasts equally in all directions. At what distance (in em) from the speaker would the sound be barely
audible (B-120 dB)? (Answer in 2 decibal places)
DELL
Chapter 17 Solutions
Physics for Scientists and Engineers with Modern Physics, Technology Update
Ch. 17.1 - If you blow across the top of an empty soft-drink...Ch. 17.3 - A vibrating guitar string makes very little sound...Ch. 17.3 - Increasing the intensity of a sound by a factor of...Ch. 17.4 - Consider detectors of water waves at three...Ch. 17.4 - You stand on a platform at a train station and...Ch. 17.4 - An airplane flying with a constant velocity moves...Ch. 17 - Prob. 1OQCh. 17 - Prob. 2OQCh. 17 - Prob. 3OQCh. 17 - What happens to a sound wave as it travels from...
Ch. 17 - Prob. 5OQCh. 17 - Prob. 6OQCh. 17 - Prob. 7OQCh. 17 - Prob. 8OQCh. 17 - Prob. 9OQCh. 17 - Prob. 10OQCh. 17 - Prob. 11OQCh. 17 - Prob. 12OQCh. 17 - Prob. 13OQCh. 17 - Prob. 14OQCh. 17 - Prob. 1CQCh. 17 - Prob. 2CQCh. 17 - Prob. 3CQCh. 17 - Prob. 4CQCh. 17 - Prob. 5CQCh. 17 - Prob. 6CQCh. 17 - Prob. 7CQCh. 17 - Prob. 8CQCh. 17 - Prob. 9CQCh. 17 - Prob. 1PCh. 17 - Prob. 2PCh. 17 - Write an expression that describes the pressure...Ch. 17 - Prob. 4PCh. 17 - Prob. 5PCh. 17 - Prob. 6PCh. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Prob. 9PCh. 17 - Prob. 10PCh. 17 - Prob. 11PCh. 17 - Prob. 12PCh. 17 - Prob. 13PCh. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - Prob. 18PCh. 17 - Prob. 19PCh. 17 - Prob. 20PCh. 17 - The intensity of a sound wave at a fixed distance...Ch. 17 - Prob. 22PCh. 17 - Prob. 23PCh. 17 - Prob. 24PCh. 17 - The power output of a certain public-address...Ch. 17 - Prob. 26PCh. 17 - Prob. 27PCh. 17 - Prob. 28PCh. 17 - Prob. 29PCh. 17 - Prob. 30PCh. 17 - Prob. 31PCh. 17 - Prob. 32PCh. 17 - Prob. 33PCh. 17 - A fireworks rocket explodes at a height of 100 m...Ch. 17 - Prob. 35PCh. 17 - Prob. 36PCh. 17 - Prob. 37PCh. 17 - Prob. 38PCh. 17 - Prob. 39PCh. 17 - Prob. 40PCh. 17 - Prob. 41PCh. 17 - Prob. 42PCh. 17 - Prob. 43PCh. 17 - Prob. 44PCh. 17 - Prob. 45PCh. 17 - Prob. 46PCh. 17 - Prob. 47PCh. 17 - Prob. 48APCh. 17 - Prob. 49APCh. 17 - Prob. 50APCh. 17 - Prob. 51APCh. 17 - Prob. 52APCh. 17 - Prob. 53APCh. 17 - A train whistle (f = 400 Hz) sounds higher or...Ch. 17 - Prob. 55APCh. 17 - Prob. 56APCh. 17 - Prob. 57APCh. 17 - Prob. 58APCh. 17 - Prob. 59APCh. 17 - Prob. 60APCh. 17 - Prob. 61APCh. 17 - Prob. 62APCh. 17 - Prob. 63APCh. 17 - Prob. 64APCh. 17 - Prob. 65APCh. 17 - Prob. 66APCh. 17 - Prob. 67APCh. 17 - Prob. 68APCh. 17 - Prob. 69APCh. 17 - Prob. 70APCh. 17 - Prob. 71CPCh. 17 - Prob. 72CPCh. 17 - Prob. 73CP
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
- What frequency is received by a stationary mouse just before being dispatched by a hawk flying at it at 24.4 m/s and emitting a screech of frequency 3400 Hz? Assume room temperature air.arrow_forward(a) Describe the factors that cause the output of a communication channel to differ from its input and state the principal sources of noise? (b) How can the impact of these be reduced or eliminated?arrow_forwardFind 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?arrow_forward
- At a recent rock concert, a dB meter registered 118 dB when placed 1.60 m in front of a loudspeaker on the stage. (a) What was the power output of the speaker, assuming a hemispherical radiation of the sound and neglecting absorption in the air? Answer in W. (b) How far away would the intensity level be a somewhat reasonable 85 dB? Answer in m.arrow_forwardA stereo amplifier is rated at 225 W output at 1000 Hz. The power output drops by 12 dB at 15 kHz. What is the power output in watts at 15 kHz?arrow_forwardB) The attenuation of a signal is −10 dB. What is the final signal power if it waS original 5w?arrow_forward
- The speed of sound at 0°C in open air is 331.3m/sec. At what temperature would the wavelength of a 440Hz sound wave be 0.82meters.arrow_forwardGiven the task of maximizing the transmission of sound waves from water into steel, (a) what is the optimum characteristic impedance of the material to be placed between the water and the steel? (b) What must be the density of, and sound speed in, a layer of 1 cm thickness that will produce 100% transmission at 20 kHz?arrow_forwardSound waves entering human ear first pass through the auditory canal before reaching the eardrum. If a typical adult has an auditory canal of 2.5cm long and 7.0mm in diameter, suppose that when you listen to ordinary conversation, the intensity of sound waves is about 3.2 × 10^−6W/m^2; a) What is the average power delivered to the eardrum?arrow_forward
- (a) If a submarine’s sonar can measure echo times with a precision of 0.0100 s, what is the smallest difference in distances it can detect? (Assume that the submarine is in the ocean, not in fresh water.) (b) Discuss the limits this time resolution imposes on the ability of the sonar system to detect the size and shape of the object creating the echo.arrow_forwardA commutation system uses 150 m of fiber that has a - 1.5 db\km loss characteristic. Find the input power if the output power 1.5 mWarrow_forwardA person who was listening to a siren reported that the frequency of thesound fluctuated with time, measured in seconds. The maximumfrequency that was heard was 800 Hz and the minimum frequency was240 Hz. The maximum frequency occurred at t = 0 and t = 8 seconds. Theperson also reported that, in those 8 seconds, the maximum frequencywas heard 3 times (including the times at t = 0 and t = 8 seconds).(a) Write an equation of the cosine function that describes the frequency ofthe siren. (b) Use your equation to determine the frequency at 2.5 seconds. (c) Use your equation to determine all the times from 0 to 8 seconds that thefrequency was 600 Hz.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningClassical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Classical Dynamics of Particles and Systems
Physics
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
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