A solid is formed by rotating the region bounded by the curve y=e^(-6x/2) and the x-axis between x=0 and x=1 , around the -axis. The volume of this solid is (pi/6)(1-e^(-6)). Assuming the solid has constant density, find the center masses of x and y. center of mass (x or y)= (integral(x*density*f(x)dx)/mass I know I need to do something with the mass and the x=o,1, but I don't know how to do it. I know that density*volume=mass, so i think i have to do something with that. Maybe find the mass at x=0 and x=1 and then find the center of that, but I'm really not sure. Thanks!