The Loudness of a Sound (Measured in Decibels DB)

question 35

Multiple Choice

The loudness of a sound (measured in decibels dB) is inversely proportional to the square of the distance from the source of the sound. Suppose a person who is 3 ft from a hair dryer experiences a sound level of 75 dB. Find the proportionality constant and write the equation that expresses the inverse proportionality.

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Definitions:

Healthy Bowel Elimination

The process of passing waste through and out of the bowel in a manner considered normal and healthy.

Dietary Choices

The selection of foods and beverages based on personal preferences or nutritional guidelines.

Hypertonic Solution

A solution that has a higher concentration of solutes compared to another solution, leading to osmotic pressure changes.

Fluid Volume Excess

A medical condition where there is too much fluid in the body, often leading to swelling, hypertension, and in severe cases, heart failure.