A 3D printed polymer rod measures 185.00 mm in length while on the heated print bed at 63.7°C. After cooling to room temperature at 21.5°C the rod measures 184.27 mm in length. Determine the coefficient of thermal expansion of the polymer.

A 3D printed polymer rod measures 106.00 mm in length while on the heated print bed at 70.0°C. After cooling to room temperature at 20.3°C the rod measures 105.53 mm in length. Determine the coefficient of thermal expansion of the polymer.

A load of P = 420 lb is applied to beam ABC. Determine the vertical ground reaction at B. Let a = 34 in., b = 16 in., and c = 10 in.

If a load of P = 10 kN is applied to rod (2), determine the magnitude of the resultant force at C. Let a = 0.39 m and b = 0.78 m.

If the normal stress in rod (1) is limited to 245 MPa and the required factor of safety is 2.1, determine the maximum load P that can be applied to rod (2). Let a = 0.32 m, b = 0.69 m, and the cross-sectional area of rod (1) be 285 mm2.

If the normal stress in rod (1) is limited to 215 MPa and the required factor of safety is 2.1, determine the maximum load P that can be applied to rod (2). Let a = 0.34 m, b = 0.81 m, and the cross-sectional area of rod (1) be 150 mm2.

A 3D printed polymer rod measures 113.00 mm in length while on the heated print bed at 60.4°C. After cooling to room temperature at 21.7°C the rod measures 112.71 mm in length. Determine the coefficient of thermal expansion of the polymer.

A 3D printed polymer rod measures 165.00 mm in length while on the heated print bed at 53.3°C. After cooling to room temperature at 21.9°C the rod measures 164.65 mm in length. Determine the coefficient of thermal expansion of the polymer.

An upward load is applied to a circular rod that has a diameter of 10.51 mm. The rod is connected to the ground using a pin that has a diameter of 9.27 mm. If the normal stress in the rod is limited to 110 MPa and the average shear stress in the pin is limited to 105 MPa, determine the maximum load that can be applied to this connection.

If the length of a timber column cannot change by more than 0.045 in., determine the maximum load P that can be applied to the column. Let b = 6.00 in., d = 9.25 in., and L = 102 in.