A Sound Wave in Brass Has a Displacement Amplitude of 3.00

question 48

Multiple Choice

A sound wave in brass has a displacement amplitude of 3.00 mm.The frequency of the sound wave 750 Hz and the velocity is 2,813 m/s.If the density of brass is 8.47 $\times$ 10³ kg/m³,then what is the pressure amplitude of the sound wave?

• A) 5.38 \(\times\) 10⁸ N/m²
• B) 5.10 \(\times\) 10⁸ N/m²
• C) 4.70 \(\times\) 10⁸ N/m²
• D) 4.17 \(\times\) 10⁸ N/m²
• E) 3.37 \(\times\) 10⁸ N/m²

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Definitions:

Noncylindrical Parts

Noncylindrical parts are components or objects that do not have a uniform circular cross-section along their length.

Circular Cross Section

A geometric profile of a body cut perpendicularly, showing a circle shape.

Form Tolerances

The allowable variations in the shape and appearance of manufactured parts.

Straightness

The measure of how closely a line or feature aligns with a true straight line, often evaluated to ensure precision in manufactured parts.