imagine you placed a limestone with a surface area of 1,000 cm2 in a lush, tropical
environment. you also put a quartzite rock with a surface area of 100 cm2 in the desert
climate at a high altitude that experiences various cycles of freezing and thawing
throughout the year. which rock do you think would weather at the fastest rate?
why? your answer should include more than one factor that affects the rate of
weathering

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.