Hi everyone Just did a pratical exam and i want to know where this equation comes from: There is an oscillating metal strip with a mass attatched to the end. youngs modulus = (16 PI ^2 * M K^2) / (b * d^3) lg f = lg K + n lg L F is the frequency in hz L is the length of the strip in m n is the gradient (i got about -0.98) lg K is the intercept and its a length of some sort M is the mass (i got 100g) b is the width of the strip d is the thickness of the strip Also, this equation implies that younges modulus can vary with the mass on the end! Thanks
I always loved questions that begin such: "Can you define in your own words..." I was always tempted to reply with "Yes. However, do you think you could understand it?" I'm glad to see my old alma mater is still asking simple questions the wrong way.