The rectangular bar is connected to the support bracket with a 20-mm-diameter pin. the bar width is w = 65 mm and the bar thickness is 20 mm. each side of the bracket has the same dimensions as the bar. the average shear stress in the pin cannot exceed 130 mpa, the bearing stress in the bar cannot exceed 150 mpa, and the bearing stress in the bracket cannot exceed 140 mpa. determine the maximum value of pmax that can be supported by the structure.

What produces a record of seismic waves? richter scale seismogram barometer seismograph

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.