The Intensity at a Distance of 6

question 101

Multiple Choice

The intensity at a distance of 6.0 m from a source that is radiating equally in all directions is 6.0 × 10^-10 W/m².What is the intensity level in dB? The threshold of human hearing is 1.0 × 10^-12 W/m².

• A)18 dB
• B)23 dB
• C)28 dB
• D)32 dB

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Definitions:

Artery

A blood vessel that carries oxygenated blood away from the heart to the body.

Tachycardia

A condition where the heart rate exceeds the normal resting rate, often defined as a heart rate over 100 beats per minute in adults.

Beats Per Minute

A measurement indicating the number of beats in one minute, commonly used to determine heart rate.

Heartbeat

The rhythmic contraction and relaxation of the heart muscle, resulting in the pumping of blood through the body.