An archer shoots an arrow into a target 53m north of his position. what do you call the magnitude of the arrows displacement? how large is that magnitude?

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.