Acontainer of volume 0.44 m3 contains 5.7 mol of argon gas at 45◦c. assuming argon behaves as an ideal gas, find the total internal energy of this gas. the value of gas constant is 8.31451 j/mol · k. answer in units of j.

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.