a. Calculate the buoyant force (in N) (upward) on a 2.00 L helium balloon. b. Given the mass of the rubber in the balloon is 1.30 g, what is the net vertical force (in N) (upward) on the balloon if it is let go? You can neglect the volume of the rubber.
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. Calculate the buoyant force (in N) (upward) on a 2.00 L helium balloon.
b. Given the mass of the rubber in the balloon is 1.30 g, what is the net vertical force (in N) (upward) on the balloon if it is let go? You can neglect the volume of the rubber.
a.
Given data:
Volume of helium balloon is, .
The buoyant force is calculated as,
Here, is the density of air, its value is and g is gravitational acceleration, its value is .
Solving as,
Thus, required buoyant force is of 0.0240 N.
b.
Given data:
Mass of rubber in balloon is, .
Net vertical force is given as,
Here, is the weight of helium and its value is calculated as,
Here, is density of Helium, its value is .
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