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The center post B of the assembly has an original length of 124.7mm, whereas posts A and C have a length of 125mm. If the caps on the top and bottom can be considered rigid, determine the average normal stress in each post. The posts are made of aluminum and have a cross-sectional area of 400mm2. Eal=70GPa.
ferryboat queuing lane holds 40 vehicles. If vehicles are processed (tolls collected) at a uniform deterministic rate of 5 vehicles per minute and processing begins when the lane reaches capacity
What is the normality of a sodium hydroxide solution that contains 250 mg/L NaOH in 2.3 L solution? What is the concentration in mole/L and mg/L as CaCO3. Na = 23, OH = 17
During a particular 30-day period, the streamflow flowing into a reservoir averaged 5.0 m3/s. Water supply withdrawals from the reservoir averaged 136 mgd. The only other outflow from the reservoir was 9.4 cm of evaporation from the water surface.
Write a brief (No more than a few paragraphs plus the equations themselves on a) description of the three-dimensional unsteady Navier-Stokes equations as applied to water.
A wheeled tractor with high-pressure tires and weighing 74,946 lb is pulled up a 5% slope at uniform speed. If the tension in the tow cable is 13,000 lb, what is the rolling resistance of the road
The coefficient of consolidation of a clay for a given pressure range was obtained as 8x10^-3 mm^2/sec on the basis of one-dimensional consolidation test results. In the field, there is a 2-m thick layer of the same clay.
The footing is supported to carry a net safe load of 400 kN/m^2 with FS = 3. Given Ysat = 20.85 KN/m^3 and phi = 35 degrees, find the required width of the footing using Terzaghi's general shear failure criterion.
The 30-Mg freight car A and 20-Mg freight car are moving towards each other with the velocities of VA= 20km/h and VB=10 km/h. A spring mounted on A has k=3 MN/m Determine the maximum compression of the spring mounted on car A.
If the elastic limit of steel is 5.0 10^8 Pa, determine the minimum diameter a steel wire can have if it is to support a 69-kg circus performer without its elastic limit being exceeded.
A water contains contains 2.0 meq/LCa2+ and 1.3 meg/L Mg2+. If one wanted to remove the hardness species by hydroxide precipitation, to what pHmust the water be raised and maintained in order for both calcium and magnesium toform hydroxide solids?
A 20 cubic meter tank contains ultimate BOD at a concentration of 550 mg/L. If the BOD reaction rate constant is -0.42/day, what is the concentration of BOD remaining after 3 days
Assuming that the new mill can be scaled to the existing 9ft x 9ftmill and that the length of the new mill is to be equal to itsdiameter, calculate the dimensions of the new mill. Round offfractional mill dimensions exceeding .2ft to the next higher ..
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