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.
![**Problem Statement:**
A metal cylinder displaces 515 cm³ of gasoline. Find the buoyant force of the gasoline.
**Explanation:**
To find the buoyant force, we can use the principle of buoyancy, which is governed by Archimedes' principle. This principle states that the buoyant force (F_b) on an object submerged in a fluid is equal to the weight of the fluid that is displaced by the object.
**Formula to Use:**
F_b = ρ * V * g
Where:
- F_b is the buoyant force.
- ρ (rho) is the density of the fluid (gasoline, in this case).
- V is the volume of the fluid displaced (515 cm³).
- g is the acceleration due to gravity (approximately 9.81 m/s²).
**Additional Information Required:**
To find the buoyant force, you need the density of gasoline, which is approximately 0.71 g/cm³. Note that this value can vary slightly depending on temperature and specific formulation.
**Calculating Buoyant Force:**
1. Convert the volume to cubic meters if necessary (optional, as cm³ is fine for the density given in g/cm³).
2. Use the density of gasoline (0.71 g/cm³).
3. Plug in the values into the buoyancy formula.
This calculation will provide the buoyant force exerted by the displaced gasoline on the metal cylinder.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc463f08e-ec7e-4810-a9a2-5563bca4d00b%2F58f94643-e634-4fed-91f4-fd8ca5694e82%2Fayhlh27_processed.jpeg&w=3840&q=75)
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