Question Details: I have two circles centered at the origin, one with radius A and the other with radius b. Looking at the hemiwasher (area between) the circles form above the x axis, find the values of A and B that place the center of mass within the hemiwasher itself, not in the open middle space. What i think i has solved so far: not necesseraly accurate: I solved the Y value of the center of mass in terms of A and B to be: :Y= (4(A^2+AB+B^2))/(3pi(A+B)) Please Help! how can I use this to find values of a and b that put the y coordinate of the center of mass between a and b? B is the smaller radii; the density is constant, so it is irrelvant.