A force of 315 N is carried by a wire 60 m long with a diameter of 1.75 mm. the wire’s modulus of elasticity is 200 GPa. Neglect the mass of the wire. What is the elongation per unit length?

A steel column with a cross section of 12 cm x 16 cm is 4 m in height and is fixed at its base. The column is braced against buckling in its weak direction only by a pin connection at the top but is unbraced in its strong direction. The column's modulus of elasticity is 2.1 x 10^5 MPa. What is the maximum vertical load the column can support without bucking?

A 1-m long steel bar (E = 200 GPa) of 10 x10 mm dimension fixed at one end and free at the other end is heated to 90°C from initially 30°C. What is the normal stress, in MPa, induced in the system due to change in temperature? Use a = 12 x 10-6 per °C. Encode you answer in whole number. Round your answer to 0 decimal places.

Question 4: A machine of 540 kg is bolted at the middle of two parallel simply supported steel beams. The clear span of the beam is 2.4 m. The moment of inertia of the cross-section of each beam is I = 4.2×10¯6 mª. The Young's modulus of the steel is E 200 GPa. When the machine is operating, it will generate a vertical force P(t)=Posinot. When the machine runs at 300 rpm, Po= 1500 N. Neglect the weight of the beams and assume 2% viscous damping in the system. Determine the amplitude of steady-state deflection of the beams at their midpoint when the machine runs at 300 rpm. machine 1.2 m = 1.2 m Steel beams