Problem statement: the curved boundaries of the shape shown are quarter circles. given the dimensions above, find: ∙∙ the x location of the centroid of the shape, ∙∙ the y location of the centroid of the shape, ∙∙ the second moment of area of the shape about the x axis, ∙∙ the second moment of area of the shape about the y axis ∙∙ the second moment of area of the shape about a horizontal axis passing through the centroid of the shape ∙∙ the second moment of area of the shape about a vertical axis passing through the centroid of the shape

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.

In general, how do thermosetting plastics compare to thermoplastics in mechanical and physical properties?

When subject to a steady load (within elastic range) over a long period of time, what is the major difference in material behavoir between steel and plastic?