A typical adult ear has a surface area of 2.1 × 10-³ m².The sound intensity during a normal conversation is about3.2 x 10-6 W/m² at the listener's ear. Assume that the sound strikes52.the surface of the ear perpendicularly. How much power is interceptedby the ear?

The given values are, A=2.1×10-3 m2I=3.2×10-6 W/m2

Answered: A typical adult ear has a surface area…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Ultrasound is absorbed in the body; this complicates the use of ultrasound to image tissues. The intensity of a beam of ultrasound decreases by a factor of 2 after traveling a distance of 40 wavelengths. Each additional travel of 40 wavelengths results in a decrease by another factor of 2. A beam of 1.0 MHz ultrasound begins with an intensity of 1000 W/m2. After traveling 12 cm through tissue with no significant reflection, the intensity is aboutA. 750 W/m2 B. 500 W/m2C. 250 W/m2 D. 125 W/m2
If a sound is amplified through a sound system the amplified sound has a sound intensity level that is 12.2 dB greater than the same unamplified sound. Calculate the ratio of the amplified intensity to the unamplified intensity?
Because the human ear is so sensitive to sounds, it can detect very small intensities. The lower intensity that a human can hear (which is represented with the symbol I0 ) is about 1x10-12 W/m2. However, a loud music venue may have sounds that are near 1.0 W/m2 (though sound as this intensity would cause permanent damage to your ears). Because the human ear can detect frequencies over such a large range of intensities, more often a sound intensity level is used. This level is defined as: β=10⋅log10II0 and the unit is dB which stands for deci-bels (or just decibels). If a person speaks with an intensity of 0.701 μ W/m2, what is the sound intensity level in decibels? Note: In the space below, please enter you numerical answer. Do not enter any units. If you enter units, your answer will be marked as incorrect.
A typical adult ear has a surface area of 2.05 x 10-3 m². The sound intensity during a normal conversation is about 3.59 x 10-6 W/m² at the listener's ear. Assume that the sound strikes the surface of the ear perpendicularly. How much power is intercepted by the ear? Number i Units
the output power of a spherically symmetric sound source is 6.0 W. the decibel level at a distance d from the source is 88 dB. what is d (in meters)?
Kajalben
A sonar system fixed in a submarine operates at a frequency 50.0 kHz .An enemy submarine moves towards the sonar with a speed of 450 km/h what is the frequency of sound reflected by the submarine ? Hint Speed of sound in water = 1450 m/s.
A typical adult ear has a surface area of 1.36 × 10-3 m2. The sound intensity during a normal conversation is about 3.78 × 10-6 W/m2 at the listener's ear. Assume that the sound strikes the surface of the ear perpendicularly. How much power is intercepted by the ear? number units
Adv 03
The sound level 23.8 m from a loudspeaker is 66.7 dB. What is the rate at which sound energy is produced by the loudspeaker, assuming it to be an isotropic source?
q31 A sound wave radiates from a speaker in all directions. If the power of the sound source is 400 W, calculate the intensity level in dB of the sound wave 0.8 km from the speaker. Question 31 options: A) 77 dB B) 71 dB C) 66 dB D) 83 dB
Because the human ear is so sensitive to sounds, it can detect very small intensities. The lower intensity that a human can hear (which is represented with the symbol I0 ) is about 1x10-12 W/m2. However, a loud music venue may have sounds that are near 1.0 W/m2 (though sound as this intensity would cause permanent damage to your ears). Because the human ear can detect frequencies over such a large range of intensities, more often a sound intensity level is used. This level is defined as: β=10⋅log10II0 and the unit is dB which stands for deci-bels (or just decibels). If a person speaks with an intensity of 2.443 μ W/m2, what is the sound intensity level in decibels? Note: In the space below, please enter you numerical answer. Do not enter any units. If you enter units, your answer will be marked as incorrect.

SEE MORE QUESTIONS

Recommended textbooks for you

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

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

SEE MORE TEXTBOOKS

A typical adult ear has a surface area of 2.1 × 10-³ m². The sound intensity during a normal conversation is about 3.2 x 10-6 W/m² at the listener's ear. Assume that the sound strikes 52. the surface of the ear perpendicularly. How much power is intercepted by the ear?