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An assembly comprised of circular AISI 301 stainless steel plates having a total exposed area of 1.5 m2 are bolted together with chromium-plated steel cap screws having a total exposed area of 110 cm2. The environment contains moisture, and possibly some salt (see Figure P9.8).
(a) Which metal will corrode?
(b) If half as many bolts are used, what influence would this have on the total rate of corrosion?
(c) How could corrosion be reduced?
a force is described as 150 lb acting through the origin of a two dimensional coordinate system up at an angle 135ordm
A force of F= (-2i+8j-6k)N is applied to an object that is constrained to move in the direction u=0.5571i+0.4481j-0.6992k. If the object has a total displacement of 10 meters in the direction of u, calculate the work done on the object by the force.
Periodical maintenance is expected every 120 uses at a cost of 5% of the purchase cost. -Consider an annual interest rate of 4%. - What is the expected average material cost per sffor each use?
consider a steam turbine operating at steady-state. there is one inlet and one outlet tand adiabatic conditions may be
Computer programs and other software (including Web Pages like this one). This includes graphics and icons and the like, which may also be "graphic works". OK, my work is on the list. How do I copyright it?
a steam power plant is to be built to provide 10 mw of electricity. the turbine to be used has an efficiency of 45 and
a hollow steel shaft g 77.2 gpa allowable stress 50 mpa outer diameter 60 mm inner diameter 25 mm length 5 m
The A992 steel rod is subjected to the loading shown. If the cross-sectional area of the rod is 60 mm2, determine the displacement of B and A, Neglect the size of the couplings at B, C, and D.
The input ports do not need to be latched by an external signal. Measure how long it takes for the 9S12 to perform inputs from all 32 bits.
Calculate the force required to punch out a rectangular hole 100m x 50mm in a 2mm thick aluminium sheet. The ultimate strength in shear is 125 MN/m^2.
Determine the speed of the 50 kg cylinder after it has descended a distance of 2 m starting from rest. Gear A has a mass of 10 kg and a radius of gyration of 125 mm about its center of mass
at the instant the cable fails the 180 lb crate is traveling up the plane with a speed of 15 fts. determine the speed
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