PHYSICS 135 Chapter Notes - Chapter 15: Stress (Mechanics), Thermal Expansion, String Vibration
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Set up: the frequency of the note one octave higher is 1568 hz. Execute: is the time for one complete vibration. Identify: the distance between adjacent dots is . v frequency, 20. 0 hz, and the short-wavelength sound has the highest frequency, 20. 0 khz. Execute: (a) red dots: f = v = Blue dots: (b) in each case the separation easily can be measured with a meterstick. (c) red dots: In each case the separation easily can be measured with a v v = 3600 s meterstick, although for the red dots a long tape measure would be more convenient. When the wave speed increases, for a given frequency, the wavelength increases. Evaluate: since the wave speed is very high, the wave strikes with very little warning. Evaluate: the frequency is much higher than the upper range of human hearing. The periods lie between (b) t is very short and cannot be measured with a stopwatch.
