1. Graph columns X and Y on the next page. Label your axes, graphing the column labeled X on the x-axis and Y on the y-axis. 2. Based on the graph, describe the relationship between the density ratios and the height ratios. See Figure 3. 3. Write an equation that expresses how the density of the wood block relates to the height of the block below the equilibrium line. The only thing on the left-hand side of the equation should be Hbelow. (Remember: The wood block is floating in equilibrium when it has displaced a volume of water that has the same mass as the entire wood block. If the wood block is 80% as dense as water, then 80% of the block will sit below the water line.)
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
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