1.At the minimum volume reached during shrinkage, a specimen of soil has a void ratio of 0.87. if Gs = 2.72, calculate the shrinkage limit
2.Using an order-of-magnitude analysis, estimate the number of 4ft x 8ft plywood sheets rewuired for the floor, roof, and exterior sheathing of a 600 ft squared house.
3.CO2 contained in a piston-cylinder device is compressed from initial state of p1 = 100 kPa, V1 = 0.004 m3, to a final pressure of p2 = 500 kPa. During the process, the pressure and volume are related by pV1.22 = constant. Calculate the work.
4.The suspended load exerts a force F = 600 lb at A and bar OA weighs 200 lb. Assume that the bar’s weight acts at its midpoint. Determine the tensions in the cables and the reactions at the ball and socket support O. Draw complete FBD(s) for full credit.