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A steel sheet metal part has total surface area = 36 in2 . How long will it take to deposit a copper plating (assume valence = þ1) of thickness = 0.001 in onto the surface if 15 amps of current are applied?
Increasing current is applied to a work part surface in an electroplating process according to the relation I = 12.0 + 0.2t, where I = current, amps; and t = time, min. The plating metal is chromium, and the part is submersed in the plating solution for a duration of 20 min. What volume of coating will be applied in the process?
as part of the new bicycle corps a solider is pedaling down the road at 25 kmh holding a missile launcher on his
A cylinder fitted with a frictionless piston contains water at 300 kPa and 200 degrees C, at which point the volume is 0.2 m^3. The piston is now moved slowly compressing the water to a pressure of 700 kPa. During this process PV^(0.9) = constant.
A rectangular material sample (2 in tall and 1 in wide) is subjected to a vertical tensile stress of 50,000 psi on its upper edge. The bottom edge of the sample is constrained from displacing in the vertical, or y, direction but is free to expand or ..
Calculate the film thickness at the trailing edge and overall heat transfer coefficient
Determine the size of the contact patch, the contact stresses, and the maximum shear stress for a 40 mm diameter steel cylinder, 25 cm long, rolled against a flat plate with a 4 kN force pressing the cylinder onto the flat plate.
one kilogram of water fills a 150-l rigid container at an initial pressure of 2 mpa. the container is then cooled to 40
a rigid tank contains 20 lbm of air at 20 psia and 70degf. more air is added until the pressure and temperature rise to
A sphere 1 ft in diameter is moving horizontally at a depth of 12ft below a water surface where the water temp is 50 deg F. Vmax=1.5Vo, where Vo is the free stream velocity and occurs at the max sphere width. At what speed in still water will cavitat..
Calculate the range of typical machining time for face milling a 10-in. long, 2-in. wide cutter with a depth of cut of 0.1-in , the cutter has 10 teeth .for the following work piece materials :1.low-carbon steel 2.titanium alloys 3.alumminum alloys 4..
The air is compressed to a gauge pressure of 100 psi at a temperature of 140°F. The atmospheric pressure is 14.0 psi. Determine the volume of air after it is compressed.
Finding the volume of hydrogen, A hydrogen filled balloon of the type used in cosmic ray studies is to be expanded to its full size which is a 100-ft diameter sphere, without stress in the wall at an altitude of 150,000 ft.
a 4.53 kg mass attached to the lower end of a spring whose upper end is fixed vibrates with a natural period of 0.45
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