Two stone spheres are cut from a certain uniformly dense rock. The first sphere has a mass of $4\mathrm{.}7$ kg and a radius of $3\mathrm{.}2$ m$.$ The mass of the second sphere is $2$ kg$.$ a$.$ What is the density of the spheres? Density $=$ kg$/$m b$.$ What is the radius of the second sphere?Radius $=$ m c$.$ In terms of variables, which relationship between the two spheres is incorrect? Where and are the masses of the first and second sphere, and are the radii, and is the density. d$.$ A third sphere is cut from the same uniformly dense rock. This sphere has a volume that is $5$ times the volume of the first sphere. What is its radius and mass of this third sphere?Radius $=$ m Mass $=$ kg