engineering

 Task 1.1 The density of sea water is 1029kN/m3 , what would the pressure difference between the bottom of a freshwater lake of depth 30m and 30m below the surface of the sea?
LO 1.2 Hydrostatic forces
Task 1.2 (a) What is the total force acting on a dam which is 80m long holding back (fresh) water at a depth of 30m?
(b) If the dam were capable of withstanding a force of 122GN at what height above the bottom of the reservoir would the spill way have to be set