NOTICE: This is a 6th harmonic string, the last loop was cut out.
I started by finding the entire string's length which was 294cm. After that, I divided it by 3 to find the length of one wave (I divided that by 10 to convert it to meters). Finally, I multiplied that by the frequency, 41 Hertz, to get a speed of 40.18 m/s.
I turned off the flash on the camera to avoid heavy brightness.
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