4) Sitting perched on a roof at a height of 7 meters, a shingle with a weight of 0.7 N has a G. P.E. of how many joules?
Formula
Work with Units
Answer with Units

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.