The frequency of the nth-harmonic of a standing wave is an integer multiple of the fundamental frequency of the string, according to:
(1)
where
is the fundamental frequency.
We know the frequency of the 4th overtone (44 kHz), which corresponds to the 5th harmonic (n=5). Therefore, we can find the fundamental frequency of the string by rearranging equation (1):
And by using the same formula we can find the following harmonics:
And since the audible range for human goes from 20 Hz to 20 kHz, we see that onlyt the first two harmonics (8.8 kHz and 17.6 kHz) will be audible to a human.
Answer:
D
Explanation:
Increasing its height to twice its original value
Answer:
False
Explanation:
As technology advances and new evidence is found which either contradicts or supports accepted scientific principles, the principles are susceptible to change.
Answer:
because of tungsten's high melting point
Explanation: