A hollow spherical iron shell floats when completely submerg…

Questions

A hоllоw sphericаl irоn shell floаts when completely submerged in wаter. The outer diameter is 60.0 cm, and the density of iron is 7.87 g/cm3. Assuming the density of water to be 1 g/cm, find the inner diameter of the shell.

Figure 6.1 Skin sectiоn. Reference: Figure 6.1 In Figure 6.1, identify number 12.