(Solved): A hollowed cylindrical beam is subjected to a pair of bending moments \( M=1 \mathrm{kN} \mathrm{m} ...

A hollowed cylindrical beam is subjected to a pair of bending moments \( M=1 \mathrm{kN} \mathrm{m} \). The inner and outer diameters of the beam are \( 23 \mathrm{~mm} \) and \( 43 \mathrm{~mm} \), respectively. Which axis will serve as the neutral axis? (You must provide an answer before moving to the next part)