hi, in our lab last Thursday we were doing standing waves on a string attached to a pulley and vibrator(at f=120Hz), and we produced loops by creating a tension force in the string. by calculating the wavelength(2*[distance from node to node]/#of loops), and the tension force(mass added to the end of the string*g), we are supposed to create a plot wavelength^2 vs. T, and then find the slope of the line, and use that to compare our experimental frequency vs. the known frequency. however, I have no idea what quantity the slope of the line of a v^2/T graph represents. the units would be, uh, m/kg*s, which doesn't really help me, either. =/ any help would be much appreciated, thanks!