For a beam with a rectangular profile with a base $4\mathrm{.}0$ cm and height $2\mathrm{.}2$ cm $,$ what is the transverse shear stress in MPa at the neutral axis along the beam where the internal shear force is $41\mathrm{.}2$ kN $?$ Hint: $Q=b\frac{h^2}{8}$ at the neutral axis. Dont use chat gpt its wrong.