1. The problem statement, all variables and given/known data THe intensity of a sound wave at a fixed distance from a speaker vibrating at 1.24 kHz is .388 W/m^2. Calculate the intensity if the frequency is reduced to 2.64 kHz and the displacement is doubled. used I=.5p(w^2)(A^2)v for the initial and the new intensity. I ended up with 4I0(f/f0)^2=I plugging in the numbers didn't get me the right answwer. can someone tell me what im doing wrong. thanks.