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1.A main cable in a large bridge is designed for a tensile forceof 2,600,000 lb. The cable consists of 1470 parallel wires, each0.16 in. in diameter. The wires are cold-drawn steel w/ anaverage ultimate strength of 230,000 psi. What factor of safety wasused in the design of the cable?
2.The brake pads for a bicycle tire are made of rubber. If a frictional force of 50 N is applied to each side of the tires, determine the average shear strain in the rubber. Each pad has cross sectional dimentions of 20 mm and 50 mm. Gr = 0.20 MPa
3.Molybdenum has a BCC crystal structure, an atomic radius of0.1363 nm, and an atomic weight of 95.94 g/mol. Compute andcompare its theoretical density with the experimental valuefound inside the cover.( experimental density is 10.22g/cm^3)
A pumped storage power plant is to be designed for a flow rate of 6,000 cfs per penstock. The penstocks are 20 ft. in diameter, with a relative roughness of 0.008. The elevation difference between the two reservoirs is 340 ft.
find the volume of the given solid region bounded below by the cone z=sqrt(x^2+y^2) and bounded above by the sphere x^2+y^2+z^2=128. using triple intergrals.
The section of the plywood in the 3rd quadrant is sawed off and the resulting piece is then glued squarely over the 4th quadrant portion of the plywood with glue of negligible weight.What are the x- and y-coordinates of the resulting center of gra..
the front of our library has six double doors and the doors rotate open in the middle making less clerance room how can i get started
Define the f/m ratio in the context of biological treatment of wastewater, and relate the f/m ratio to the exponetial growth and declinign growth phases of a bacterial culture.
determine the pressure head at the nozzle inlet to produce a water jet velocity of 40 ft/s. Neglect the friction loss and assume incompressible flow.
Argon is expanded in an isentropic turbine from 2 MPa and 500oC to 200 kPa. Determine the outlet temperature and the work produced by this turbine per unit mass of argon.
what is a dummy activity and slack activity and also what are slack variables in linear programming constraints equation
The bond has a maturity date of 10 years from now. How much the person must sell the bond for 6 years from now in order to make a rate of return of 10% per year, compounded semiannually is closest.
Given that the average power plant produces 667 MW of electricity per year, there are 492 coal plants in the US, and a solar constant of 1.361 KW/m^2, how large of an area would one need to cover with solar cells to replace our dependence on coal ..
Cyanide solutions used for heap leaching are made up of sodium cyanide (NaCN). The sodium cyanide solution ([NaCN]-total = 0.01 M) is kept at pH 10.4. The pH is kept high to keep the cyanide in the CN- form.
Given the total dissolved solids in a brine is 20,500 ppm, compute the resisitivity at a reservoir depth of 8,000 feet.
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