Deisgn a thrust block needed to resist the force generated by a 45 degree flanged regular elbow which carries a flow of 14 cfs. The diameter of the fitting narrows from 24 inches to 18 inches and the inlet pressure is 100 psi. The elbow will be buried 5.5 feet below the surface in always dry clay. Assume the elbow is horizontal and ignore friction loses, but adjust for minor loss in the bend. Water Temp is 70 degrees F.