A Sound Source Emits 30

question 57

Multiple Choice

A sound source emits 30.0 W of sound power spread equally in all directions. What is the sound intensity level 30.0 m from the source?

• A)94.2 dB
• B)83.2 dB
• C)2.65 × 10^-3 dB
• D)2.65 × 10^-3 W
• E)-25.8 dB

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Definitions:

Mate for Copulation

The selection of a partner for the purpose of sexual reproduction.

Aggression

A range of behaviors that can be physical or verbal, intended to harm or intimidate others.

Reinforced

Strengthened or emphasized, often in the context of behavior strengthened by a consequence in psychological terms.

Classical Conditioning

An instructional process in which two stimuli are regularly paired together; the response, which is at first produced by the second stimulus, is eventually produced by the first stimulus on its own.