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.
Which is a force that holds atoms together?
Solution:
The force that holds the nucleons inside the nucleus of an atom is nuclear force. It is basically an attractive force and the charge independent. The force that holds an electron and nucleus together is electrostatic force and it is a charge-dependent force. In an atom, the positive charge is concentrated at the nucleus of an atom and the negative charge electron is around the nucleus. Apart from this force, there is a force that holds the atoms together called interatomic or intermolecular force.
Now let us see how these interatomic act between the atom. Consider two isolated hydrogen atoms.
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