1.A trapezoid has a bottom width of b, and top width of T, a heightof h, and side slopes of z(horizontal to vertical). By integration, determine the location of the centroid of thetrapezoid Define your coordinate system.
2.A 10 cm long cylindrical core sample is subjected to alabrotory flow test under a preaaure differential of 3.4 atm usinga fluid of viscocity 2.5 centipoise (cp). the diameter of thecore is 4cm . a steady flow rate of .35 cm^3/sec wasmeasured. calculate the permeability of this sample.