Over a one foot long section, a W 16 x 77 is subjected to moments: MLEFT = 225 k-ft and MRIGHT = 300 k-ft. Both moments are positive. Required:
a. Calculate the shear force on each side. Show direction and indicate if the shear force is positive or negative.
b. Using the stress wedge, find the shear FORCE between the top flange and the web. Treat the top flange as a rectangle and ignore any fillets.
c. Recalculate using the shear stress formula VQ/It.

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.