Problem 3- The shown aluminum block with a rectangular cross section in subjected to a compressive axial force of 8 kips. If the 1.5 inch side changed its length to 1.500132 inches, determine: 1-Poisson's ratio. 2-The new length of the 2 inch side. 1.5 in. 8 kip- E=10,000 Ksi 8 kip

Determine the compressive force (in lb) in the bars shown after a temperature rise of 173°F if d = 0.015 in. Round off the final answer to five decimal places. Use the following data: Bronze              Aluminum A = 2.24 sq. in          A = 2.78 sq. in  E = 14959726 psi            E = 10594540 psi L = 12.5 in            L = 16.6 in α = 11.61 x 10-6/ °F      α = 12.67 x 10-6/°F