By What Amount Does the Sound Intensity Decrease When the Distance

question 72

Multiple Choice

By what amount does the sound intensity decrease when the distance to the source doubles?

• A)1.4 dB
• B)2.0 dB
• C)4.0 dB
• D)6.0 dB

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Definitions:

Hemoglobin

A protein in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.

Serum Sodium

The concentration of sodium in the blood, an essential electrolyte that helps regulate water balance in the body.

Serum Cholesterol

A measure of the total amount of cholesterol in the blood, including low-density lipoprotein (LDL) and high-density lipoprotein (HDL), important for assessing heart disease risk.

Pulmonary Embolism

A blockage in one of the pulmonary arteries in the lungs, typically caused by blood clots that travel from the legs or other parts of the body.