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Each pylon of the cable stayed bridge has a cable that supports the deck and a backstay. Say the supporting cables carry 70% of the weight of the bridge which weighs 50 Mg. Even though the pylon is built-in at the bottom, the tensions in the backstays are chosen so that the net horizontal force on a pylon due to the two cables is zero. Say the steel pylon consists of two separate box sections, 800 mm x 1000 mm 20 mm thick on the two sides of the deck that join at a certain point above the deck. Let the cables be attached to the pylons at height h, below which the two box sections are separated and equally share the loads of the cables. Determine the maximum allowable height, h, if the box sections are not to buckle in the weaker direction. Take the angles
If the free surface at a distance from the axis of the vortex, which is sufficient for its effect to be negligible, is 180 mm above datum, what will be the height above datum of a point B on the free surface at a radius of 100 mm
A company near City X want's to know how much benzene they can release into River Y. City Z is 85.5 miles downstream from City X. City Z doesn't want to have Benzene levels higher than 0.0000015 g/L.
What is the concentration of tracer in the reactor 1 h after tracer addition is terminated? The reactor had an initial concentration of tracer of 1.0 mg/L when tracer addition commenced.
There are many obvious advantages of a Graphical User Interface (GUI). But what are some disadvantages of a GUI?
determine the max tension in anchor bolts due to service loads. determine the lightest W14 column for the given loads.
Assume the earth is a sphere with a radius of 6,371,000.000 meters. Three points are defined by their latitude and longitude. Point Latitude (N) Longitude (W) A 40° 25' 48.67" 86° 54' 54.00" B 40° 25' 47.00" 86° 54' 54.00" Purdue CE C 40° 25' 47.0..
A 40 oF breeze of 10 miles per hour blows over the top of a round open-top water cooling tank which has a bulk temperature of 100 oF. What is the rate of energy in kW that enters into the air What type of heat transfer mechanism is employed in thi..
how many flight lines will be needed to cover the tract for the data given in Problems?
Two parallel plates are separate at a distance of 2mm by a fluid. If a shearing stress of 150 Pa is developed at the upper plate when it is pulled at a velocity of 1m/s. Determine the viscosity of the fluid.
A .2kg mass of argon gas fills a .05m^3 piston-cylinder volume at a pressure of 400 kPa absolute. The piston induced pressure is changed until the volume expands to twice its original value, while the temperature remains constant.
A small stream of 20,000 cfm has a BOD of 5 mg/L. An industrial outfall joins the stream; the outfall has a BOD of 250 mg/L. Downstream of the outfall, the BOD must be 10 mg/L to meet regulations. What is the allowable flow rate of the outfall in ..
The coefficient of rolling resistance can be taken to be a constant for all speeds, equal to 0.008. If the cyclist is coasting down a 6% grade, what is the maximum speed attained
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