1. An open beaker, atmospheric pressure of 101.325 kPa, has a layer of mercury 20 cm and a layer of water 15 cm. What is the pressure at the bottom of the beaker?
2. What will a totally immersed neutrally buoyant body lowered to an arbitrary depth in an incompressible fluid do when left alone?
3. Determine the resultant force per metre on a dam wall 20 m high if the water level is at 14 m.