An initially empty tank on Earth is being filled with water so that the height of the water in the tank increases at a steady rate. Which one of the following graphs best describes the gauge pressure P at a point on the bottom of this tank as a function of time t during the filling process? Assume the tank starts filling at time t = Os and that the top of the tank is open to the atmosphere. The atmospheric pressure does not change during the process. The water in the tank does not overflow or reach the top of the tank during this process. A) B) D)

A liquid storage tank consists of a vertical axis circular cylindrical shell closed at its lowered end by a hemispherical shell as shown in the figure. The weight of the system is carried by a ring like support at the topand the lower extremity is unsupported. A liquid of specific weight of 9KN/m^3 entirely fills the container. Consider H = 8m, R =2.4m, and plate thickness of 1.8mm. a.Find the peak stress in the hemispherical region. b.Calculate the peak circumferential stress in the cylindrical region. **Note = Pressure = specific weight x height Show free body diagram