(Solved): During heavy lifting, a disk between spinal vertebrae is subjected to a 5000N compressional force ...

During heavy lifting, a disk between spinal vertebrae is subjected to a $5000\mathrm{N}$ compressional force. (a) What pressure (in $\mathrm{Pa}$ ) is created, taking the disk to have a uniform circular cross section $2.20\mathrm{cm}$ in radius? $\mathrm{Pa}$ (b) What deformation (in $\mathrm{cm}$ ) is produced if the disk is $0.780\mathrm{cm}$ thick and has a Young's modulus of $1.5\times 10^9\mathrm{N}/{\mathrm{m}}^2$ ? $\mathrm{cm}$