A Sound Wave in Air Has an Intensity of 1

question 54

Multiple Choice

A sound wave in air has an intensity of 1.00 × 10⁻³ W/m². The density of air is 1.29 kg/m³ and the speed of sound in air is 331 m/s. The pressure amplitude of the sound wave is

• A) 0.740 N/m².
• B) 0.821 N/m².
• C) 0.850 N/m².
• D) 0.924 N/m².
• E) 0.980 N/m².

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Definitions:

Scatterplot

A type of graph used in statistics to display values for two variables for a set of data, showing the relationship between them.

Points

In various contexts, a numerical value representing a quantity, score, or position.

Influential Points

In statistical analysis, data points that have a significant impact on the outcome of a linear regression or other model.

Labeled Points

In data science, points that are tagged with a label or value, often used in supervised learning.