A typical loud sound wave with frequency has a pressure amplitude of about .

PHYSICS · Multi-part · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics

Problem

A typical loud sound wave with frequency

1\ \text{kHz}

has a pressure amplitude of about

10\ \text{Pa}

. (1) At

t=0

, the pressure is a maximum at some point

x_1

. What is the displacement at that point at

t=0

? (2) What is the maximum value of the displacement at any time and place? Take the density of air to be

1.29\ \text{kg m}^{-3}

and the speed of sound in air to be

340\ \text{m s}^{-1}