A 3 m long pole lies along the x-axis with one end at the origin. At the other end (point A), a rope is attached and guyed back to a point on the wall (point B), located at (0,1.2,-2) (in m). The tension in the rope is 2500 N. Replace the force applied by the rope on the pole by an equivalent force couple system located at the origin. What is the y-component of the required force (in N)?

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.