1.A 1.0-m rigid horizontal support is hung by two cables as shown. One cable is brass and The other cable is high-density polyethylene plastic. At room temperature (21°C), the cables measure 3.50 m vertically. When the temperature drops to 15°C, find the following:
(a) The change in length in each cable (
b) The change in elevation of points A, B, and C
2.A 1000 in diameter solid steel (p= 0.303) bar is 10.0 ft long. Under a tensile load.
(a) Estimate the lateral strain experienced by the bar
(b) Estimate the cross sectional dimension of the bar when under strain