An intersection approach has a saturation flow rate of 1500 veh/h, and vehicle arrive at this approach at the rate of 800 veh/h. the approach is controlled by a pre-timed signal with a cycle length of 60 seconds and d/d/1 queuing holds. local standards require that signals should be set such that all approach queues dissipate 10 seconds before the end of the effective green portion of the cycle. assuming that approach capacity exceeds arrivals, determine the maximum length of effective red that will satisfy the local standards

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.

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.

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?