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20a
Problem

Problem 20a

Page 354

Section: Problems

Chapter 12: Sound

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Textbook Expert
Textbook ExpertVerified Tutor
11 Nov 2021

Given information

Given data:

According to Table 12-2, the intensity of a regular conversation is roughly when the speaker is about cm away.

 

 

 

 

Step-by-step explanation

Step 1.

The power output may be calculated using the intensity, which is the power output per unit area. The surface area is equal to that of a spherical.

 

Whare,

 =intensity

 =amplitude

 =power

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