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TRAFFIC CONTROL The accompanying figure shows the flow of downtown traffic during the rush hours on a typical weekday. Each avenue can handle up to 1500 vehicles/hour without causing congestion, whereas the maximum capacity of each street is 1000 vehicles/hour. The flow of traffic is controlled by traffic lights at each of the six intersections.
a. Set up a system of linear equations describing the traffic flow.
b. Solve the system devised in part (a) and suggest two possible traffic-flow patterns that will ensure no traffic congestion.
c. Suppose the traffic flow along 9th Street between 5th and 6th Avenues, x6, is restricted because of sewer construction. What is the minimum permissible traffic flow along this road that will not result in traffic congestion?
A continuous and aligned fiber-reinforced composite has a cross-sectional area of 500 mm2 and is subjected to a longitudinal load of 50,000 N. The composite is 25 vol % fiber 75 vol% polycarbonate matrix. Calculate the fiber–matrix load ratio.
consider x norm57 y norm57 and z norm19 and assume xy and z are independent.1 find and sketch the probability
liquid water at 0degc weighs 9810 nm3 and ice at the same temperature weighs 8992 nm3. consider a system which is
a stream of humid air containing 1.00 mole water vapor and the balance dry air is to be humidified to a water content
assuming that r-134a is an ideal gas what would the specific volume of r-134a at 40 deg c and 0.06 mpaabsolute? how
An economical study is required to investigate how cost effective these types of coating are taking into consideration the efficiency improvement of the solar panels.
Determine the window heat loss and associated weekly cost with the ill-fitting insulation in place. The insulation will significantly reduce the radia- tion losses through the window. Losses will be due almost entirely to convection.
the state of stress at a point is shown on the element. determine a the principle stress and b the maximum in-plane
An unsuited free diver can work in a pressure of up to 490KN/m^2 and a suited diver in pressure of up to 1815 KN/m^2. Calculate the maximum depths at which they might work in sea-water which has a specific gravity of 1.03.
For each case, determine the specified property value and locate the state by hand on sketches of the p-y and T-y diagrams.
Calculate the percent energy distribution in a steam generator that goes into steam, losses to flue gases, refuse and heat losses. The steam generator receives 480 short tons of coal per day. The heating value of coal is 13,000 BtU/lb",. 375,000 Ib,j..
a) What is the temperature and state of the steam in the pipe? b) What is the quality of the steam in the pipe?
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