Question: W 3 ( a ) Assume that you would like to test Eq . 9 . 4 by using just two data points - one
Wa Assume that you would like to test Eq by using just two data pointsone with the blue wire and one with the yellow wire. Assume that you know the value of for the yellow wire with g of weight suspended from it which produced the mode do not use an experimental value for in this instance; instead, just treat it as an algebraic quantity that is given If the wave speed is correctly given by and you know the ratio of the densities, use the values given in the table at the end of the Procedure section then for what total hanging mass would the
blue string also have five nodes ie four "loops" or antinodes at the same frequency that the yellow wire achieved five nodes with a total suspended mass of g Show all of your calculations. Hint: write down two versions of Eq one for the blue wire and another for the yellow wire, keeping all of the quantities as algebraic variables, labeled with the subscripts "blue" and "yellow"; since the two frequencies are the same in this case, the two equations can be set equal to each other, and the rest is simply a matter of some algebraic manipulations.
b Calculate the mass that would be required if you were to use a redcolored wire with instead of the bluecolored wire see the table of values at the end of the Procedure section
Note: These are theoretical calculations using Eq and the values cited in Parts a and b Do not utilize any of the experimental values obtained for these modes, otherwise you will not obtain the correct answer ie due to experimental error, the measured frequencies do not coincide with the theoretical values
P Wire Number The Blue Wire
Total mass attached plus hanger
average
P Wire Number The Yellow Wire Total mass attached plus hanger
average
P Wire Number Yellow Wire with Varying Hanging Mass
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