A pencil is viewed through a concave lens. Which of the following best
describes the image?
Object
Image
O
A. Enlarged
O
B. Inverted
C. Reduced
O
D. Real

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.