1. Carrie has a container that contains thousands of mixed glass beads and iron beads of different shapes and sizes. Which of the following is the best way to separate them? A. The glass beads will float, so she could add water to the container and the glass will float to the top. B. The iron beads are magnetic, so she could separate the glass from the iron with a strong magnet. C. The iron beads might be heavier, so she could shake the container until the iron beads settle to the bottom. D. The iron beads are smaller, so she could pour the beads through a strainer and the glass beads will separate. Explanation:
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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