Pressure and Forces within Fluids

In summary: Since all three tanks have the same height, the pressure at the bottom of each tank would depend on the force exerted by the water on the bottom and the surface area of the bottom. In summary, all three tanks are filled with water to the same depth and have an equal height. Tank A has the middle surface area at the bottom, tank B the least, and tank C the greatest.
  • #1
daisy497
2
0
Tank A

|...|
|..h2o...|
|..h2o...|
|_h2o__|

Tank B

\.../
.\..h2o../
..\.h2o./
...\h2o/

Tank C

.../...\
../.h2o.\
./..h2o..\
/__h2o__\



The three tanks shown above are filled with water to an equal depth. All the tanks have an equal height. Tank A has the middle surface area at the bottom, tank B the least and tank C the greatest.
(Select T-True, F-False, G-Greater than, L-Less than, E-Equal to. If the first is F the second L and the rest G, enter
FLGGGG).

A) The water in tank C exerts an upward force on the sides of the tank.
B) The pressure exerted on the bottom of tank C is greater than for the other tanks.
C) The force due to the water on the bottom of tank C is ... the weight of the water in the tank.
D) The force exerted by the water on the bottom of tank C is ... the force exerted by the water on the bottom of tank A
E) The pressure at the bottom of tank B is ... the pressure at the bottom of tank C

I can't seem to figure this one out. I've made several attempts and they are all wrong.
 
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  • #2
Welcome to PF.

What determines pressure?
 
  • #3
Pressure = Force/Area
 

1. What is pressure within fluids?

Pressure within fluids is the force per unit area that is exerted by a fluid against a surface. It is a measure of how much force is being applied to a specific area within the fluid.

2. How is pressure within fluids calculated?

The formula for calculating pressure within fluids is P = F/A, where P is pressure, F is force, and A is the area over which the force is applied. This means that as the force increases or the area decreases, the pressure within the fluid will increase.

3. What is the difference between pressure within fluids and atmospheric pressure?

Pressure within fluids refers to the force exerted by the fluid itself, while atmospheric pressure is the force exerted by the weight of the atmosphere. Atmospheric pressure is typically measured in terms of air pressure, while pressure within fluids can refer to any type of fluid, such as water or oil.

4. How does pressure within fluids affect objects submerged in the fluid?

Objects submerged in a fluid will experience a force due to the pressure of the fluid acting on their surface. The magnitude and direction of this force will depend on the object's size, shape, and depth in the fluid. This force is known as buoyancy, and it can either push the object upwards or downwards.

5. What is Pascal's principle and how does it relate to pressure within fluids?

Pascal's principle states that when pressure is applied to a fluid, the pressure is transmitted equally in all directions. This means that any change in pressure at one point within a fluid will cause a change in pressure throughout the entire fluid. This principle is important in understanding how pressure within fluids affects objects and can be seen in action in hydraulic systems.

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