A four-lane highway has a normal capacity of 1800 veh/hr/lane. In the southbound direction, a vehicle disablement on the roadway shoulder occurs at 4:30pm. Due to rubbernecking, the capacity in the southbound direction is reduced to 1200 veh/hr/lane at this time. At 4:45 pm, the disabled vehicle is removed from the shoulder and the capacity increases to 1500 veh/hr/lane. At 5:00pm the roadway capacity returns to its full value of 1800 veh/hr/lane. From 4:30pm until the queue clears the traffic flow is 1600 veh/hr/lane. Determine the following1. Average delay per vehicle2. Max queue length3. Average queue length in the southbound direction

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.