Air pressure decreases at a rate of 1.25 Pa (pascals) per kilometer in the eastward direction. In addition, the air pressure is decreasing at a constant rate with respect to time everywhere. A ship sailing eastward at 10 km/hour past an island takes barometer readings and records a pressure drop of 40 Pa in 2 hours. Estimate the time rate of change of air pressure on the island. (pascal is a unit of air pressure 1Pa=1N/m2=1kg/m∗s2)
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.
Air pressure decreases at a rate of 1.25 Pa (pascals) per kilometer in the eastward direction. In addition, the air pressure is decreasing at a constant rate with respect to time everywhere. A ship sailing eastward at 10 km/hour past an island takes barometer readings and records a pressure drop of 40 Pa in 2 hours. Estimate the time rate of change of air pressure on the island. (pascal is a unit of air pressure 1Pa=1N/m2=1kg/m∗s2)
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