Aflow of nitrogen n2 at 350k and 200 kpa at a speed of 100 m/s through a channel measuring 10 μm in diameter (the kinematic viscosity of n2 is 1.09 × 10−5 m2 /s, the sound speed is 381 m/s) . use the reynolds number to figure out if the flow is laminar or turbulent and can we use the the continuum theory (i. e. navier stokes equations) to decribe the flow? if yes, explain what type of boundary condition should we use (slip or nonslip).

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10