2.17 The bar ABC is supported by a pin at A and a steel wire at B. Calculate the elongation of the wire when the 36-lb horizontal force is applied at C. The cross- sectional area of the wire is 0.0025 in.2 and the modulus of elasticity of steel is 29 × 10⁰ psi.

The initial compressive force of a steel column can be determined by Euler's buckling formula. The column has the following properties: A = 9484 mm² Fy=345 MPa x = 164 x 106 mm4 ly = 23 x 106 mm4 Proportional limit, fs = 290 MPa The x-axis has an unbraced length of 10 m which is pinned at the top and fixed at the bottom with an k = 0.70. The y-axis has unbraced length of 5 m due to the bracing at the mid-height. Compute the initial compressive load of the column. Select the correct response: 6606.59 KN 3706.14 KN E = 200 GPa 1816.01 kN 926.53 kN

For the  beam  of  the cross section shown, calculate the  nominal  moment  (Mn)  and check the  tensile strain.