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A structure is designed with a factor of safety of 5.25 psi. If the allowable stress of the structure is 3000 psi. What stress on the structure will lead to its failure?
a piston-and-cylinder device contains 5 kg of water initially at 150 C and 0.20 MPa. The frictionless piston is then pushed slowly in an isothermal process until the volume of water becomes 10% of its initial value.
the reliability is to be 95%, the overall standard deviation is 0.4, the drainage coefficient is 0.9, delta PSI is 1.7 ( with TSI of 2.5), and the load transfer coefficient is 3.2. the modulus of subgrade reaction is 200 lb/in^3.
a saturated 100 cm^3 clay sample has a natural water content of 30 percent. it is found that the shrinkage limit occurs when the water content is 19 percent. if the specific gravity of soil solids is 2.70
A chalk core plug having a pore volume of 17.0307 cm3 is fully saturated with reservoir brine. A synthetic oil flood is conducted on this plug. It is found that 12.25 cm3 of reservoir brine was displaced from this plug by the synthetic oil.
On a shovel/truck operation the production of the shovel is 293 BCY/h and a job efficiency of 0.75. The trucks used have a capacity of 12 BCY and have a cycle time of 45 min.(excluding loading).
Calculate the percipitable water (mm) in a 10-km high standard atmoshperic column if the surface conditions are temperature=20 degrees C, pressure=101.3 kPa and the laspe rate is 6.5 degrees C/km.
The two disks each have a mass of 18 kg and are attached at their centers by an elastic cord that has a stiffness of k= 1.6 kN/m. Determine the stretch of the cord when the system is in equilibrium and the angle of the cord.
When P = 800 lb, A) Draw the shear and bending moment diagram along its length; B) Determine the maximum tensile and compressive bending stresses; and C) determine the maximum shear stress.
A 25 mm diameter steel cylinder falls under its own weight at a uniform rate of 0.1 m/s inside a tube of slightly larger diameter. Castor oil of viscosity 0.25 N.s/m2 fills the spacing between the tube and the cylinder.
We are analysing energy efficiency of four different cars, A (3.2 miles/kwh), B (42 mpg using Clean Diesel), C (22 mpg using corn based ethanol E85), and D (28 mpg using regular gasoline). Now accounting for all of the energy used, including extra..
If the nuclei from the liquid were cuboids, determine the critical radius and the activation energy of solidification for Spheroidal nuclei.
The wastewater treatment plant for Pine City discharges 1 × 105 m3/day of treated waste to the Pine River. Immediately upstream of the treatment plant, the Pine River has an ultimate CBOD of 2 mg/L and a flow of 9 × 105 m3/day.
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