The uniform sign has a weight of 1500 lb and is supported by the pipe A B, which has an inner radius of 2.75 in . and an outer radius of 3.00 in . If the face of the sign is subjected to a uniform wind pressure of p=150 lb / ft^2, determine the state of stress at points C and D. Show the results on a differential volume element located at each of these points Neglect the thickness of the sign, and assume that it is supported along the outside edge of the pipe. | Numerade