An ice cube whose edges measure 20.0 mm is floating in a glass of ice-cold water, and one of the ice cubes faces is parallel to the waters surface. (a) How far below the water surface is the bottom face of the block? (b) Ice-cold ethyl alcohol is gently poured onto the water surface to form a layer 5.00 mm thick above the water. The alcohol does not mix with the water. When the ice cube again attains hydrostatic equilibrium, what is the distance from the top of the water to the bottom face of the block? (c) Additional cold ethyl alcohol is poured onto the waters surface until the top surface of the alcohol coincides with the top surface of the ice cube (in hydrostatic equilibrium). How thick is the required layer of ethyl alcohol?
• Substance that flows • Take the shape of their container • Gases are compressible while liquids are incompressible • Density Measured in Mass density is independent of the objects size ‣ All objects of the same material will have the same density Gases have a lower density than liquids Liquid and temperature correlate when it comes to density • Pressure Units: Force due to a fluid's pressure pushes on the walls of the container and all parts of the fluid as well ‣ Thus if holes are punched in the container, water is able to come out of each one which is enabled by the pressure pushing water foreword Pressure in liquids ‣ Force of gravity is responsible for th