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A bridge has been constructed between the mainland and anisland. The total cost (excluding toll) to travel across thebridge is expressed as C=50+0.5V, where V is the number of veh/dayand C is the cost/vehicle in cents. The demand for travelacross the bridge is V=2500-10C.
(a)Determine the volume of traffic across the bridge.
(b)If a toll of 25 cents is added, what is the volume acrossthe bridge?
(c) A tollbooth is to be added, thus reducing the travel timeto cross the bridge. The new cost function is?
A rectangular channel of 2 m depth and 5 m width carries 1 m deep running water. It is laid to a slope of 0.001 with Manning's n = 0.02. Some distance downstream there is a hump of height 0.5 m on the stream bed.
a newly designed car has a 9.2 ft wheelbase, is rear wheel drive, and has a center of gravity 18 inches above the the road and 4.3 ft behind the front axle. the car weighs 2450 lb, the mechanical effciency of the drivetrain is 90%, and the wheel r..
Assume to just using coal as an electric energy source. Take efficency as %50 for average power plant.If the carbondioxide level is 400 ppm by volume now, what will be the carbondioxide level 10 years later
Energy transfer in mechanical systems, A wheel is 800mm in diamiter and has a mass of 1000kg. on a horizontal surface without skidding, the vehicle accelerates uniformly at 0.5m/s^2 for 5 seconds.
problem 1. solve the following three questions of the beam abc. note that a is a roller support b is a pin connection
the j-shaped member shown in the figure is supported by a cable de and a single journal bearing with a square shaft at
An open system Brayton cycle is used in a power plant. The atmospheric inlet conditions of the compressor are: temperature 30C and pressure 100kPa and the pressure at its outlet is 1200kPa.
If the tank is 2 meters deep and the particle enters the tank at the surface of the water, what is the longest amount of time that the particle can take to settle, if it is to be removed
In order to comply with regulations, an iron/steel sinter plant installs an electrostatic precipitator (ESP) to collect 98% of the 10 ?m particles from an air stream flowing at 2 m3/s
Explain how the different physical characteristics and moisture content of soil lead to the different angles of repose, swell, and shrinkage factors. Explain how these factors affect excavation operations and costs.
The vertical effective stress at a certain point in a loose sand is 1000lb/ft^2. If an earth quake were to occur, how much excess pore water pressure would need to develop at this point for liquefaction to occur
Calculate the minimum flow rate (m^3/hr) of river water needed to acheive pre cooling hot, pasteurized liquid prodcut assuming that 10% heat is lost to the surroundings during exchange and that the water temp after cooling should not exceed 25 deg..
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