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A huge reservoir of air supplies a converging-diverging nozzle with throat and exit areas of 10 cm^2 and 25 cm^2 respectively. The reservoir pressure and temperature are 150 kPa and 20C. Determine the range of back pressure over which 1. normal shocks appear in the nozzle 2. Oblique shocks form at the exit 3. Expansion waves form at the exit
Coal discharged from a dump truck with an initial velocity (v)= 1.8m/s at 50 degrees falls on conveyor belt B. Determine the required velocity v(B) of the belt if the relative velocity with which the coal hits the belt is to be vertical.
What is the difference between mixed and unmixed flow in heat exchangers?
Draw the Mohr's circle for this stress state, deterrnine the principal stresses and the angle of the principal direction to the x-axis and determine the maximum shear stress.
Determine the resultant of the three forces F1 = 2.0i + 3.3j - 2.6k; F2 = - i + 5.2j - 2.9k; and F3 = 8.3i - 6.6j + 5.8k, which are concurrent at the point (2, 2, -5.). The forces are in Newton's and the distances are in meters.
determine the values of Q that minimizes unit sales cost UC = TC/Q; and compute the annual profit earned by the plant at this quantity.
A knowing that the normal stress magnitude in each link is not to exceed 24 ksi, the shearing stress in pin F is not to exceed 15 ksi, and the deflection of point A is not to exceed .08 in.
two solid cylinders rods AB and BC are welded together at B and loaded. determine the magnitude of the force P for which the tensile stress in rod AB is twice the magnitude of the compressive stress in rod BC?
The steam from the nozzles of a single wheel impulse turbine discharges with a velocity of 600 m/s at an angle of 20 degrees. The blade wheel rotates at 3000 rev/min and the mean blade radius is 590 mm
A connection of rod of 50 mm diameter has a rectangular block 50 mm wide and 25mm thick forged at its end. A turned radius of 25 mm joins the rod and the block. Draw the projections of the rod showing curves of intersection.
Assume they test null hypothesis H0: versus H1: Will the engineers decide to use the steel if H0 is rejected? Will the engineers decide to use the steel if H0 is not rejected?
what are the four basic families of shape-production processes? Cite one advantage and one limitation of each family.
the 3000 lb car and the 4600 lb tow truck are stationary. the muddy surface on which the car rest exerts a negligible friction force on the car. what is the tension in the tow cable.
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