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lab phy 8

# lab phy 8 - PedroViteri pjv267 Physics103M:Laboratory7 1...

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Pedro Viteri  pjv267 4/20/08 Physics 103M: Laboratory 7 1. Introduction  The main objective of the laboratory 8 of the physics course 103m was to show how waves in a string can be  represented as standing waves. In this experiment we used a sonometer, it was a structure to allow us to tension  the string according to a force, created by a weight hanging on the end of the string. To create the waves we just  plucked the string like a guitar and sound waves were created. For the analysis we used a sound sensor and the  software Data Studio. With this software we were able to graph the standing waves created by the interference  of the waves travelling back and forth on the string. We determined the amplitude and the frequency to compare  them to the theoretical data calculated from the relation mass, length and string density.  F=V/ λ = n/2L*SQRT( τ /u), τ the tension on the string and u the linear density of the string, was given 7.37 +- 0.28 x 10^(-4) kg/m. n was set to 1 in this experiment, because we were after the fundamental frequency only.

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lab phy 8 - PedroViteri pjv267 Physics103M:Laboratory7 1...

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