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# Lab 5 - PHYSICSLABORATORY REPORT TheSpeedofSound...

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PHYSICS LABORATORY REPORT  The Speed of Sound  Tanisha Billups November 12, 2008

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Objective of the Experiment:  The purpose of this experiment is to measure the  velocity of sound in air at room temperature using a vibrating air column.  Theory:   The speed of sound depends on the type of medium and the temperature of  the medium. In this experiment, an air column whose length is varied is used to  measure the velocity of sound. In order to cause the column to vibrate in resonance the  length is varied. The frequency of the source and the length of the air column are  needed to find the velocity of sound. The equation for the velocity of a wave is given by  v =   where   is the wavelength in meters and   is the frequency in 1/s.  λѵ λ ѵ Temperature is a major factor when determining the speed of sound. To determine the  velocity the following equation is used v = 331    T/273.  To calculate   we used the equation   =  λ λ   4L
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