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Get Full Access to University Physics - 13 Edition - Chapter 16 - Problem 21e
Get Full Access to University Physics - 13 Edition - Chapter 16 - Problem 21e

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# Unless indicated otherwise, assume the speed of | Ch 16 - 21E

ISBN: 9780321675460 31

## Solution for problem 21E Chapter 16

University Physics | 13th Edition

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University Physics | 13th Edition

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Problem 21E

Unless indicated otherwise, assume the speed of sound in air to be v = 344 m/s. CP A baby’s mouth is 30 cm from her father’s ear and 1.50 m from her mother’s ear. What is the difference between the sound intensity levels heard by the father and by the mother?

Step-by-Step Solution:
Step 1 of 3

Solution 21E Assume the speed of sound in air to be v = 344 m/s. Given data: The distance between baby’s mouth and mother’s ear r = 1.5 m. 1 The distance between baby’s mouth and father’s ear r = 30 cm. 2 The difference between sound intensity levels = 10 dB log(I /I ) 2 1 2 1 Intensity drops as the square of the distance from the source.the distance ratio squared is (1.5/0.30) = 25 times greater at father’s ear than mothers.in decibels it can expressed as 10 log(25).

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321675460

University Physics was written by and is associated to the ISBN: 9780321675460. This full solution covers the following key subjects: EAR, Sound, mother, father, Intensity. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. The full step-by-step solution to problem: 21E from chapter: 16 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. The answer to “Unless indicated otherwise, assume the speed of sound in air to be v = 344 m/s. CP A baby’s mouth is 30 cm from her father’s ear and 1.50 m from her mother’s ear. What is the difference between the sound intensity levels heard by the father and by the mother?” is broken down into a number of easy to follow steps, and 51 words. This textbook survival guide was created for the textbook: University Physics, edition: 13. Since the solution to 21E from 16 chapter was answered, more than 316 students have viewed the full step-by-step answer.

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