The Intensity of a Spherical Wave 2

question 23

Multiple Choice

The intensity of a spherical wave 2.5 m from the source is 120 W/m². What is the intensity at a point 9.0 m away from the source?

• A)9.3 W/m²
• B)24 W/m²
• C)53 W/m²
• D)80 W/m²
• E)270 W/m²

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Definitions:

Manipulative

Describes actions or strategies designed to control or influence others in a deceptive or indirect way, often for one's own advantage.

Defensively

Acting in a manner aimed at protecting oneself from criticism, danger, or harm, often by being guarded or resistant to change.

Paralinguistics

Aspects of spoken communication that do not involve words themselves but how they are spoken, including tone, loudness, and pitch.

Occulesics

A subdivision of nonverbal communication that focuses on the study of eye behavior, including patterns of eye contact, gazing, blinking, and movements, and their interpretation.