DONT USE AI$!!!$ VERY IMPORTANT! IF YOU USE I REPORT YOU! CALCULATE WITF PAPER AND PENCIL A concrete beam is subjected to a positive bending moment M$.$ The cross$-$section of the beam is shown in the figure below. The reinforcement on the bottom beam is $4$ steel bars with diameter of $12$ mm each. The characteristic strength in compression of concrete is $f_{ck}=25$MPa and the characteristic strength of steel in tension is $f_{sk}=235$MPa. The partial safety factor for concrete is ${}_c=1\mathrm{.}5$ and for steel ${}_s=1.$ The modulus of elasticity for concrete is $E_c=31$GPa and for steel $E_s=210$GPa. After defining the design strengths $($characteristic strength$/$partial safety factor$)$ for each material, determine what is the maximum bending moment M that the beam can carry for the concrete material. Then check if the reinforcement can carry this bending moment M$.b_1=300(mm),b_2=150(mm),h_1=100(mm),h_2=100(mm),e=25(mm)$

$y$ :