Water is released from a water tank through a pipe to the atmosphere. the pipe diameter is 8 mm and the length is 6 m. water temperature is 15°c. the resistance coefficient of the pipe f = 0.015 and the difference between the water surface and the pipe outlet is 3 m. determine the exit velocity of water and sketch the hydraulic grade line (hgl) and energy grade line (egl) along the pipe. assume that minor loss can be ignore but not the major loss.

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?

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?