Determine the LRFD design strength of the W12 x 30 section illustrated below. Assume A992 steel and that the bolt diameters are 7/8-in. For each flange, assume there are at least three holes in each line of bolts. You do not need to check block shear

Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.