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In the determination of the average velocity of flow in wide rivers, it is common practice to estimate the average velocity in a vertical section by making a single measurement at a distance below the water surface equal to 60 percent of the depth. Assuming the following equation represents the true distribution in the vertical, determine the actual distance below the surface at which the velocity, u, equals the depth-averaged velocity, U.
A ballon is tethered at a height of 16.8 m above the ground by three cables. if the tension in highlighted cable is 60 N , determine the vertical force exerted by the balloon at the base of the balloon basket.
CE 3303 – Solids – MWF – Spring 2014 - Homework Set 23, – The pipe shaft of the auger, rotating at a constant angular velocity, is subject to the axial force and torque shown. Determine the stress state at points A & B and show on a stress element.
When the ambient air is at 70 degrees Fahreneit, 14.7 psia, and contains 21% oxygen by volume, 4.5 lb of air are pumped into a scuba tank, capacity 0.75 ft^3. What volume of ambient air was compressed
a soil sample is obtained by pushing a 16 in long tube into the side of a pit. the tube has an inside diameter of 3 in. and weighs 1.8 lb. The soil in the tube is trimmed so that its ends are flush with the ends of the tube.
What is the alkali-aggregate reaction? List some of the rock types that are vulnerable to attack by alkaline solutions. Discuss the effect of aggregate size on the phenomenon.
Write down a mass balance expression for a chemical release in a lake given the following: the lake is completely mixed, in-flow and out-flow are equal, degradation of the chemical is occurring through biodegradation (k1) and chemical transformati..
At the end of the first 5 years, the company upgraded the analyzer at a cost of $10,000. Following the upgrade the lab purchased another 5 year maintanence contract for $1000 a year, payable at the end of each year.
the 50-lb load is hoisted by the pulley system and motor m. if the crate starts from rest andnbspby constant
Ball A is thrown vertically upward from the top of a 20-{\rm m}-high-building with an initial velocity of 3m/s . At the same instant another ball B is thrown upward from the ground with an initial velocity of 16m/s .
a 25-ft long crane supported at its lower end by a pin is elevated by a horizontal cable as shown in the figure. a
A 600 ft vertical crest curve crosses a 4 ft diameter pipe at rightangles at station 110+85. The PVI of the vertical curve is station110+00 and elevation 1098.4 ft with an incoming tangent grade of1.2% and an outgoing tangent grade of -1.8%.
Figure out the times he was at each of these companies, who else was there at the time and how they might have collaborated. Include the technologies that were in use or being developed.
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