P2.22 For the assembly shown in Figure P2.22, high-density polyethylene bars (1) and (2) each have coefficients of thermal ex- (1) pansion of a = 88 × 10-6/ºF. If the temperature of the assembly is decreased by 50°F from its initial B (2) temperature, determine the result- ing displacement of pin B. As- sume that b = 32 in. and 0 = 55°. b FIGURE P2.22

2. From the given figure and data below. Determine the: a. P so that the structure is stable (in equilibrium) b. Draw the FBD of the member BC c. Reaction at A Weight of the member AB and BC = 50kg µ at C= 0.5 1.5 m 3m 1.5 m 30 30° 4, = 0.5

There is no force on a beam, but the beam is subjected to a very large temperature difference above and below. As shown in the figure below, try to calculate the vertical displacement of the midpoint of the beam, assuming that the temperature coefficient of the entire beam is a = 11.7×10^-6 °F. Tip: See Mechanics of Materials for Beam Deformation Geometry

Subject is structural analysis Please show each steps to the question and make it easy for me to understand. Explain the diagram