A hollow sphere with an inner radius R and outer radius 2R is made of material of density 0 and is floating in a liquid of density 20 The interior is now filled with material of density so that the sphere just floats completely submerged Find ...

A hollow sphere with an inner radius R and outer radius 2R is made of material of

Question:

A hollow sphere with an inner radius R and outer radius 2R is made of material of density ρ0 and is floating in a liquid of density 2ρ0. The interior is now filled with material of density ρ so that the sphere just floats completely submerged. Find ρ’.