By driving a truck over a scale, it was determined that the loads on the front and rear axles are 18 kn and 12 kn, respectively, when the truck is empty. determine the weight and the location of the heaviest load that the truck can carry if the load on each axle is not to exceed 40 kn. three forces and a couple act on crank abc. determine the value of d so that the given system of forces is equivalent to zero at (a) point b, (b) point d.

Liquid flows at steady state at a rate of 2 lb/'s through a pump, which operates to raise the elevation of the liquid 100 ft from control volume inlet to exit. the liquid specific enthalpy at the inlet is 40.09 btu/lb and at the exit is 40.94 btub. the pump requires 3 btu/s of power to operate. if kinetic energy effects are negligible and gravitational acceleration is 32.174 tt/s, the heat transfer rate associated with this steady state process is most closely 1)-2,02 btu/s from the liquid to the surroundings 2)-3.98 btu/s from the surroundings to the liquid. 3)-4.96 btu/s from the surroundings to the liquid. 4)-1.04 btu/s from the liquid to the surroundings.