1. A steel hoop, 10 mm thick and 80 mm wide, with inside diameter 1500.0 mm, is heated and shrunk onto a steel cylinder 1500.5 mm in diameter. What is the normal force in the hoop after it has cooled? Neglect the deformation of the cylinder, and use E = 200 GPa for steel.
2. The timber member has a cross-sectional area of 1750 mm2 and its modulus of elasticity is 12 GPa. Compute the change in the total length of the member after the loads shown are applied.
