Homework 4 Method of Joints 60 pts Total 1. (27 pts) Using the Method of Joints, determine the force in each member of the truss shown below. Summarize your results in a Force Summation Diagram and in the table below the truss Support reactions are given Ay 4 4 A b E 50# - A = 200lb() A = 150 16 (1) Fx - 200 lb ( ) Member Force (lb) Tension or Compression AB (pus) CB (3pts) M

Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed

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.

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.