A 2.0 kg spherical balloon has a radius of 7.35 m and is filled with helium. how so great can be the load that it lifts, if it is assumed that the cladding and the structure of the balloon have a mass of 930 kg? Neglect the buoyant force on volume. load. The density of air is 1.29kg/m3. The density of helium is 0.179kg/m3.
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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