A Sound Wave in Brass Has a Displacement Amplitude of 3.00

question 26

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 speed is 2,813 m/s. If the density of brass is 8.47 × 10³ kg/m³, then what is the pressure amplitude of the sound wave?

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

---

Definitions:

Intuitive

People who are more comfortable with theories, abstraction, imagination, and speculation.

Thinker

A person who likes to analyze problems using facts and rational logic.

Extrovert

A person who is outgoing, social, optimistic, and often uncomfortable with being alone.

Intrapersonal Learner

An individual who prefers learning through introspection, self-study, and reflection, often understanding their own thoughts and feelings best.