for open-closed pipe:
fn = (2n+1)*v/4L
f1 = v/4*L
= 350/(4*1.3)
= 67 Hz
f2 = 3v/4*L
= 3*350/(4*1.3)
= 200 Hz
f3 = 5v/4*L
= 5*350/(4*1.3)
= 340 Hz
If you model the tube as an open-closed system, what are the first three resonant frequencies?...
Parasaurolophus was a dinosaur whose distinguishing feature was a hollow crest on the head. The 1.6 - m - long hollow tube in the crest had connections to the nose and throat, leading some investigators to hypothesize that the tube was a resonant chamber for vocalization. If you model the tube as an open-closed system, what are the first three resonant frequencies? Assume a speed of sound of 350 m/s.
4) A tube with one open end and one closed end has á resonant frequency of 71.0 Hz. Find the length of the tube- and find the first three overtones. Use 343 m/s for the speed of sound.
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6. An airhorn is essentially a tube of air that vibrates at certain resonant frequencies, just like many musical instruments. The following questions refer to two airhorns, each 85.0 cm long, operating in the same still air (no winds, same temperature, etc.), where the speed of sound is 340 m/s. Horn 1 is a tube that is open at both ends. Horn 2 is a tube that is open at one end but closed at the other. a. Evaluate (T/F/N)...
12. A longitudinal standing wave can be created in a long, thin aluminum rod by stroking the rod with very dry fingers. This is often done as a physics demonstration, creating a high-pitched, very annoying whine. From a wave perspective, the standing wave is equivalent to a sound standing wave in an open-open tube. In particular, both ends of the rod are anti-nodes. What is the fundamental frequency of a 2.50 m -long aluminum rod? The speed of sound in...