A String That Is 0 $0.88 \mathrm {~m}$ Long and Open at Both Ends into Its Second Overtone

question 38

Multiple Choice

A string that is 0.26 m long is vibrating in its n = 6 harmonic. The sound from tthis string excites a pipe that is $0.88 \mathrm {~m}$ long and open at both ends into its second overtone resonance. What is the common resonant frequency of the string and the pipe? The speed of sound in air is 345 m/s.

• A) 590 Hz
• B) 390 Hz
• C) 490 Hz
• D) 690 Hz
• E) 760 Hz

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Definitions:

Internal Combustion Engines

Engines that generate mechanical power by burning a fuel-air mixture within combustion chambers to create high-pressure gases that drive movement.

Intake

The part of an engine that draws air into the combustion chamber, sometimes referring more broadly to the system including air filters and intake manifolds.

Compression

The process of reducing the volume of a mixture of air and fuel in an engine's cylinder before ignition, thereby increasing its potential power.

Ignition

The process of sparking combustion in an engine to initiate the engine's operation.