Engineering, 19.11.2019 02:31 parkbro3956
Two routes connect an origin-destination pair with performance functions: t1= 5 + 0.5 (x1/2)^2; t2= 7 + (x2/4)^2 (with t's in minutes and x's in thousands of vehicles per hour). it is known that at user equilibrium, 75% of the origin-destination demand take route 1. what percentage would take route 1 if a system-optimal solution were achieved, and how much travel time would be saved?
Answers: 1
Engineering, 03.07.2019 14:10
Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned
Answers: 2
Engineering, 04.07.2019 16:10
The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.
Answers: 1
Engineering, 04.07.2019 18:10
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
Answers: 3
Two routes connect an origin-destination pair with performance functions: t1= 5 + 0.5 (x1/2)^2; t2...