Lab #3 - 10.) Frequency would be the same in both. 11.)...

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7.) The dust was arranged in 3 cm variations of random dispersion, and light waves-like dispersion which shows that the nodes are approximately 6 cm apart so yes it did arrange properly. 8.) The lowest mode on the bar would produce bigger wavelengths so you would see fewer nodes, possibly one in the chamber so only one area of the wave-like dispersion of dust. 9.) The probably carrying both kinds of oscillation just based on how we were doing the experiment. It would be hard to not oscillate it transversely as well as longitudinally, but it is the longitudinal vibration that causes the dispersion of dust.
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Unformatted text preview: 10.) Frequency would be the same in both. 11.) Dispersion relation is the interrelation of wave velocity, frequency, etc. when we study waves in a specific medium. 12.) The frictional heat increases the energy of the oscillations changing the wave properties. 13. &14.) First, it changes where the node is on the actual bar and changes how many waves are able to be made within the tube. This affects the dust by making less visible patterns due to the node not being positioned at maximum resonance, and it affects how many piles you will have. 15.) Inversely, we measure wavelength vs. the speed....
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This note was uploaded on 03/10/2010 for the course PHY 115L taught by Professor Antoniewicz during the Spring '08 term at University of Texas at Austin.

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