For the engineering structure below you may assume the weight of the members to be negligible when compared to the loads they are supporting. All pin connections may be considered frictionless. Bar DE is aluminum and has a cross sectional area of 5000 m{{m}^{^{2}}}mm 2 and has a normal stress of 200 MPa in compression. Bar BC is steel and has a cross sectional area of 1300 m{{m}^{^{2}}}mm 2 and has a normal stress of 150 MPa in tension. Find the force P

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false