A uniform block of height 0.310 m, floats in glycerin of density 1260.0 kg/m3. The bottom of the block is 0.260 m below the surface of the glycerin. What is the density of the block? the answer is 1060 kg/m^3 Now the question is: Ethyl alcohol with a density of 791.0 kg/m3 is poured slowly over the block until the block is totally immersed. Assume that the two liquids do not mix. How much does the depth to which the block immersed in the glycerin change? For convention use positive as meaning more of the block is immersed in the glycerin and negative as less.
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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