If the ratio of density is 3:2, then the ratio of mass is 2______ .

If the ratio of density is 3:2, then the ratio of mass is 2______ .

Let the side length of the cube be l, then the pressure of the cube on the tabletop is p = FS = GS = ρ l3gl2 = ρ LG, and the pressure of a and B on the tabletop is equal, then ρ a l a g = ρ B L B G, so l a l b = ρ B ρ a = 23, the mass ratio of a and b m a m b = ρ a L3 a ρ B L3 B = 32 × 2333 3 B = 49