1. The problem statement, all variables and given/known data Let P represent a force and x, y, and z represent distances. Determine the dimensions for each of the quantities listed below. I attached the problem I need help with. (it's a small picture) So I'm a bit confused since the it involves both dx and dy. The dimensions for P is (ML/T^2) Where M=mass L=length T=time Then I have to differentiate it twice but with two different variables. Since x and y refer to distances and the only distance found in that equation is L. Would that mean the dimensions for dP/dx = M/T^2 ? If so, would that mean the answer to the 2nd derivative still be the same answer since they're differentiating between different variables? (I'm not sure if I worded this right, but I remember from Calc III something similar) On a side note. I took calculus quite a while ago so some of this I might have forgotten. The picture I provided, that is not equivalent to (dP/dx)*(dP/dy) right?