Apipe of outside diameter 200 mm is lagged with an insulating material of thermal conductivity 0.06 w m k-1 and thickness 75 mm. the pipe carries a process fluid at a temperature of 300 °c and the average temperature of the outer surface of the lagging is 45 °c (a) estimate the rate of heat loss per metre length of pipe. (b) explain why the thermal resistance of the pipe wall can be ignored.

Which bonds are found inside a water molecule

Slab pull” is a type of tectonic plate movement that occurs due to the forces of mantle convection and results in the subduction of the lithosphere true or false

Review multiple-concept example 7 in this chapter as an aid in solving this problem. in a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves in a circle. in one instance, the radius of the circle is 0.626 m. at one point on this circle, the ball has an angular acceleration of 66.1 rad/s2 and an angular speed of 12.6 rad/s. (a) find the magnitude of the total acceleration (centripetal plus tangential) of the ball. (b) determine the angle of the total acceleration relative to the radial direction.