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A bridge has been constructed between the mainland and an island.The total cost (excluding tolls) to travel across the bridge isexpressed as C = 50 + 0.5V, where V is the number of veh/h and C isthe cost/vehicle in cents. The demand for travel across the bridgeis 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 across thebridge?
(c) A tollbooth is to be added, thus reducing the travel time tocross the bridge. The new cost function is C = 50 + 0.2V. Determinethe volume of traffic that would cross the bridge.
(d) Determine the toll to yield the highest revenue for demand andsupply function in part (a) and the associated demand andrevenue.
Consider a box model for an air shed over a city that is 1 X 105 m on a side, with a height of 1200 m induced by a temperature inversion. Winds with no SO2 blow at 4 m/s agains one side of the box.
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Two remediation options are being considered for a contaminated land area formerly used for industrial operations. Option 1 involves removing all of the contaminated soil over a two-year period at a cost of $2.2 million per year
If this rod is to be used again with an initially straight axis, determine the maximum permissible deflection that may be allowed during testing procedures. Young's Modulus = 210 kN/mm2 and Yield stress of the steel= 240 N/mm2.
Calculate the viscous drag force on this plate, assuming boundary-layer flow with free-stream velocity of 15 ft/s and plate dimensions of L = 8 ft and W = 4 ft.
1.Remain at the previously indicated rate of climb 2.Fall to zero rate of climb indication 3.Indicate a maximum rate of climb 4.Indicate a maximum rate of descent
At the moment when A passes P, the police car begines to accelerate at the constant rate of 6m/s^2 until a speed of 160km/h is achieved, and that speed is then maintained.
Is a soil with a hydraulic conductivity of 1*10-5 cm/s and depth of 10 ft equivalent to a soil with hydraulic conductivity of 1*10-6 cm/s and depth of 5 ft
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A 33-year record of peak annual flow rates was subjected to a frequency analysis. THe median value is defined as the midvalue (50% value) in the table of rank-ordered magnitudes.
Laboratory clean rooms are often kept at a slightly higher pressure than ambient pressure in order to flush out particulates and keep dust from getting in. If the pressure in such a room is equivalent to 1 mm water greater than the surrounding roo..
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