Determine the Intensity (In W/m²) of a Harmonic Longitudinal Wave $\rho$

question 23

Multiple Choice

Determine the intensity (in W/m²) of a harmonic longitudinal wave with a pressure amplitude of 8.0 * 10-3 N/m² propagating down a tube filled with helium. ( $\rho$ = 0.179 kg/m3, v = 972 m/s.)

• A)3.7 * 10-7
• B)1.8 *10-7
• C)9.2 *10-8
• D)4.6*10-8
• E)1.5* 10-9

---

Definitions:

Kernel Speed

Refers to the efficiency or performance rate at which the core of a computer's operating system processes data or tasks.

Gigahertz (GHz)

A unit of frequency equal to one billion cycles per second, commonly used to measure the clock speed of computer processors.

Nonvolatile Storage

A type of storage that retains data even when power is turned off, such as hard drives, flash drives, and SSDs.

Temporary Storage Space

Space in a computing device used to store data that is needed for short periods, often cleared after its purpose is served.