Later, the student uses the oscillator to create a single pulse with initial speed vo at at the left end of the string, as shown above. The student wants to quantify the observation that the pulse slows down on the right half of the string. The student comes up with the following equation relating the string’s diameterD at a given point on the string to the speedvof the pulse at that point: v=vo(Do/D)
(c) Is the equation consistent with the observation that the pulse slows down on the right half of the string?
____Yes ____No
(d) Using frame-by-frame analysis of video of the pulse, the student plots the speedv of the pulse as a function of the string diameterD, as shown below.
Are the data in the graph consistent with the student’s equation above?
Extracted text: 0.75vo 0.50vo 0.25vo D 3Do 0- Do 2DoExtracted text: Do C Wall Dot Oscillator Note: Figure not drawn to scale. Later, the student uses the oscillator to create a single pulse with initial speed vo at the left end of the string, as shown above. The student wants to quantify the observation that the pulse slows down on the right half of the string. The student comes up with the following equation relating the string's diameter D at a given point on the string to the speed v of the pulse at that point: v = vo () Do D (c) Is the equation consistent with the observation that the pulse slows down on the right half of the string?
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