Noise Source a Has a Sound Power Level of 99

question 44

Essay

Noise Source A has a sound power level of 99 dB,and noise Source B has a sound power level of 82 decibels.Compute the ratio of absolute sound power between Source A and Source B.
NOTE TO INSTRUCTOR: This examination question goes beyond the scope of the text.It is a technical question intended for students who have an engineering or science background.Supporting lecture notes for instructors who desire to teach this technical extension of Chapter 10 topics are available from the author.

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Definitions:

Self-Fulfilling Prophecy

The tendency of one’s expectations to affect one’s behavior in such a way as to make the expectations more likely to occur.

In-Group

A social group to which an individual identifies as being a member, fostering a sense of belonging and identity among its members.

Out-Group

Out-Group refers to social groups with which an individual does not identify, often perceived as different or separate from one’s in-group, which can affect attitudes and behaviors towards members of these groups.

Pariah

An individual who is despised or avoided by others, often due to being outcast from their social group.