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A pressurized steel tank has a radius r=0.6m, a wall thickness t=18mm and an internal pressure p of 2.8 MPa.The steel has a modulus of elasticity E of 200 GP and a poissons ratio 0.30.Determine the hoop and axial stressses.Deteremine the maximum in-plane and out-of-plane shhear stresses.Determine the hoop and axial strains. Determine the normal and shear stresses acting on an angle of 35 degrees.
you are working as a project analyst for the local gas utility and you have been placed on a project to install an
Determine the required pumping rate. the aquifer has T= 1600 m 2 /day and the wells each have radius of influence of 600m.
Earth whose in situ weight is 110 lb per cf and compacted weight is 124 lb per cf is placed ina a fill at rate of 280 cy per hr, measured as compacted earth. The thickness of the compacted layers is 8 in.
Briefly explain the difference between piezometer and tensiometer with respect to the working principle, special design consideration and limitation of the instrument.
Groundwater has been contaminated with three chemicals: benzene (log Kow 2.13), pentachlorobenzene (log Kow 5.03), and naphthalene (log Kow 3.36). The aquifer (rs = 2.3 g/cm3; h = 0.4; foc = 0.02) has a gradient of 0.004 and hydraulic conductivity..
describe the difference between population standard deviation and sample standard deviation. describe a scenario in
Soil engineers hypothesize that the share of limestone in Austin’s soils is the same as that in San Antonio soils. They take 100 bore holes in each region
Two objext A and B are moving along the same line. At the time t=0, B is 75ft ahead of A. The acceleration of A is 1.8ft/s^2 and the acceleration of B is -1.3ft/s^2. The velocity of A is 32ft/s and the velocity of B is 51ft/s.
A wastewater is discharged to a stream with a reoxygenation constant of 0.5 day-1 and a velocity of 1 m/sec. The oxygen saturation concentration in the stream is 11 mg/L.
How do the concepts of green design, industrial ecology, and sustainable developement differ from past approaches to engineering design Prepare a brief report on this topic using some specific examples for illustration.
If the densities of metals A and B are 4.27 and 6.35 g/cm3, respectively, whereas their respective atomic weights are 61.4 and 125.7 g/mol, determine whether the crystal structure for this alloy is simple cubic
If a tractor with 23-hp, a max speed of 3.6 mph in 1st gear and an effieiciency of 92% is operated operated down a 4% slope and the rolling resistance is 80 lb/ton, what is the maximum external pull in each of the 4 gears.
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