A wood beam is reinforced with steel straps at its top and bottom as shown. Determine the maximum...

Problem statement: A wood beam is reinforced with steel straps at its top and bottom as shown. Determine the maximum bending stress developed in the wood and steel if the beam is subjected to a bending moment of M = 5 kN-m. Take Ew = 11 GPa and Est = 200 Gpa
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Wouldn't n = E(wood)/E(steel) and not n = E(steel)/E(wood)?