The bottom plate moves in the x-direction at a constant speed, u. the layer has a thickness, h, and a viscosity, μ. the top surface is exposed to air, which has a very low viscosity, so the shear stress is negligible. you may assume that flow is steady, two-dimensional, and fully-developed. solve the continuity and navier-stokes equations to determine the velocity profile, u(y).

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.

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?