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A differential nitrogen pressure exists across a 2-mm-thick steel furnace wall. After some time, steady-state diffusion of the nitrogen is established across the wall. Given that the nitrogen concentration on the high-pressure surface of the wall is 5 kg/m3 and on the low-pressure surface is 0.2 kg/m3, calculate the flow of nitrogen through the wall (in kg/m2 xh) if the diffusion coefficient for nitrogen in this steel is 1.0 x10^-10m2/s at the furnace operating temperature.
Determine the magnitude of the horizontal and vertical components of the force of the water on the gate.
a gondola on a ski lift is supported by two bent arms as shown in fig. 3. each arm is offset by the distance b180 mm
the imperial ore facility was operated by the galactic empire on the planet raxus prime. the refined ore produced
Calculate the change in velocity required in changing the position of a satellite in an orbit by 90 degrees. The initial and final orbit is circular around the Earth with a 15000 km radius. Calculate the delta velocity, semi-major axis and period for..
a single degree of freedom system has a concentrated mass weighing 38.6 lb a spring constant of 22.5 lbin and a damping
an insulated piston-cylinder device contains 5 l of saturated liquid water at a pressure of 200 kpa. an electric
steel rods of 0.05m diameter are heat treated by being passed through a heat-treating furnace in which the atmosphere
hydrogen forms an interstitial solid solution with bcc chromium. the atomic radius for chromium is 0.128nm. find the
a gas stream produced as a by-product of a petroleum processing operation is to be used as a fuel in a small electric
an ideal otto cycle has a compression ratio of 5.3. at the beginning of the compression process p190 kpa t127 c and
A small hoist is mounted on the back of a pickup truck and is used to lift a 500N crate . Determine the force exerted on the hoist by the htdraulic cylinder BC, the reaction at A.
one mole of an ideal gas at 1.0 mpa and 300k is heated at constant pressure till the volume is doubled and then it is
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