If the Intensity Level at Distance D of One Trombone

question 13

Multiple Choice

If the intensity level at distance d of one trombone is 70 dB,what is the intensity level of 76 identical trombones,all at distance d?

• A) 146 dB
• B) 89 dB
• C) 5320 dB
• D) 76 dB
• E) 82 dB

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Definitions:

Domestic Output

The sum of all products and services generated inside a nation's boundaries.

Migration

The movement of people from one place to another with the intentions of settling, permanently or temporarily, in a new location.

Labor

Human effort used in production which can also include physical and mental effort.

Brain Drain

The emigration of highly trained or intelligent people from a particular country, often due to lack of opportunities or political instability.