A light spring of constant k = 90.0 N/m is attached vertically to a table. A balloon (with empty mass 2.50 g) is filled with a mixture of helium (density = 0.179 kg/m3 ) and air (density = 1.29 kg/m3 ) to a volume of 4.00 m3 and is then connected to the spring, causing the spring to stretch. If the spring stretches by 1.0 cm, find the required density of the gas mixture, and find how much helium and air you need to produce that mixture.
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.
A light spring of constant k = 90.0 N/m is attached vertically to a table. A balloon (with empty mass
2.50 g) is filled with a mixture of helium (density = 0.179 kg/m3
) and air (density = 1.29 kg/m3
) to a
volume of 4.00 m3 and is then connected to the spring, causing the spring to stretch. If the spring
stretches by 1.0 cm, find the required density of the gas mixture, and find how much helium and air you
need to produce that mixture.
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