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In a two-dimensional, incompressible flow field, the x component of velocity is given by the equation u = 2x.
(a) Determine the corresponding equation for the y component of velocity if v = 0 along the x axis.
(b) For this flow field, what is the magnitude of the average velocity of the fluid crossing the surface OA of Fig. P6.23? Assume that the velocities are in feet per second when x and y are in feet
10 kJ of heat enters a piston-cylinder. The internal energy of the piston-cylinder increases by 2 kJ. How much work is produced by the piston-cylinder?
If the mass diffusivity of hydrogen is 9 X 10-7 m2/s, how much time is required to bring the density of dis- solved hydrogen to a value of 1.2 kg/m3 at the center of the sheet?
If the bolts have a diameter of 3/8 in., and the load is P = 20 kips, determine the average shear stress on the bolt surfaces that are subjected to direct shear.
This shows that the equation ∇T = (δT/δx)e1→+(δT/δy)e2→ cannot be used as the analytical definition of the gradient because it gives different results in different coordinate systems
A 1.2-lb metal bar initially at 2100oR is removed from an oven and quenched by immersing it in a closed tank containing 28 lb of water initially at 620oR. Each substance can be modeled as incompressible. An appropriate constant specific heat value fo..
a pitot-tube probe is used to calculate the velocity of air at a given point. the air density is 1.3 kgm3 and the
a shaft is a circular cross sectional with diameter of 1.5 is subjected to loading of bending mz 5000 lb-in and a
in the ice cream con, L=4in , and Theta = 35 degree, the cone is filled with ice cream such that the portion above the cone is a hemisphere. determine the volume of the ice cream? (usin Matlab program )
two mating spur gears are 20 mm wide and the tooth profiles have radii of curvature at the line oif contact of 10 and
Determine the view factors F12 and F21 for two concentric spheres characterized by radii R1 and R2, where R2 > R1. What is the view factor when the smaller sphere is displaced from the origin by R1/2 and R2 > 4R1?
what is the cost of gasoline (dollars per gallon) that makes this option affordable when the buyer 's interest rate is 10% per year? The car will be driven 100,000 miles uniformlyover an eight-year period.
The rod is stress free at room temperature [20(C (68(F)]; and upon cooling to -40(C (-40(F), a maximum thermally induced tensile stress of 125MPa (18,125psi) is possible. Of which of the following metals or alloys may the rod be fabricated: alumin..
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