The Speed of Sound in Air Is 340 M/s, and the Density

question 1

Multiple Choice

The speed of sound in air is 340 m/s, and the density of air is 1.2 kg/m³.If the displacement amplitude of a 440-Hz sound wave is 10 µm, what is the intensity of the wave?

• A)0.16 W/m²
• B)0.32 W/m²
• C)12 W/m²
• D)16 W/m²
• E)32 W/m²

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Definitions:

Total Cost of Ownership

Encompasses the comprehensive assessment of the direct and indirect expenses associated with acquiring and operating a product or system over its entire lifespan.

Acquisition Time

The duration it takes from recognizing a need for goods or services until they are fully delivered and operational.

Activity-Based Costing

An accounting method that assigns costs to products or services based on the activities they require.

Total Cost of Ownership

An estimate of all direct and indirect costs associated with acquiring, operating, and maintaining a product or system over its entire lifecycle.