Two routes connect an origin and destination with performance functions t1=5+3x1 and t2=7+x2, the x’s expressed in thousands of vehicles per hour and the t’s expressed in minutes. total o-d demand is 7000 vehicles in the peak hour. determine the user equilibrium and system optimal route flows and total travel times.

Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.