**Question 4**A composite of steel and an unknown material is tested in uniaxial tension where the materials are in parallel. The Young’s Modulus of the composite is found to be 126.35 GPa. If the composite is 60% steel, what is the unknown material?| Material | Young’s Modulus (N/m²) ||---------------------------------|------------------------|| Steel | $2.10 \times 10^{11}$ || Aluminium | $6.90 \times 10^{10}$ || Lead | $1.70 \times 10^{10}$ || Glass | $6.00 \times 10^{10}$ || Concrete | $3.00 \times 10^{10}$ || Water | $2.30 \times 10^{9}$ || Air (at 20°C) | $1.43 \times 10^{5}$ || Beech wood (along the grain) | $1.40 \times 10^{10}$ || Beech wood (across the grain) | $8.80 \times 10^{8}$ |**Options:**- Concrete- Beech wood (along the grain)- Beech wood (across the grain)- Aluminium- Lead

Given: The Young's modulus of the composite is found to be 126.35 GPa=1.2635×1011 Nm2 The Composite…

Answered: A composite of steel anc composite is…

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A composite of steel anc composite is found to be Material Steel Aluminium