Torricelli's Theorem & Speed of Efflux, Bernoulli's Principle, Fluid Mechanics - Physics Problems

This physics fluid mechanics video tutorial provides a basic introduction into Torricelli's theorem which describes the speed of fluid that will leave a storage tank with a certain height. The speed of efflux can be calculated using a simple equation associated with Torricelli's law. The gravitational potential energy of the fluid at a height above ground level is converted to kinetic energy as the fluid exits the container. The formula can be derived using conservation of energy principles or using Bernoulli's principle. This video contains 2 examples / practice problems including a problem that asks you to find the efflux speed given the gauge pressure inside the top portion of the tank.

Mercury Barometer Problems:

Open Tube Manometer:

U Tube Manometers:

Archimedes Principle & Buoyant Force:

Buoyant Force of Helium Balloon:

Physics - Intro to Buoyancy:

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Apparent Weight and Apparent Mass:

Fractional Volume of Submerged Object:

Hydrometer Physics Problems:

Volume Flow Rate and Mass Flow Rate:

Equation of Continuity:

Bernoulli's Equation:

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Venturi Meter Problems:

Dynamic Lift Force:

Viscosity of Fluids and Velocity Gradient:

Full-Length Videos and Worksheets:

Physics PDF Worksheets:

[lanatomic]

I wouldn't be having a B in my STEM high school without you man, thank you so much!

[artb]

Thank you, this tutorial was extremely helpful.

[Rachitt-is-literally-amazingg]

This guy come in clutch. Every. Single. Time.

[prabalsharma]

For the last question, why do we make the pressure inside the tank 5.5 atm? Is it because the equation only applies to atmospheric pressure which is the reason why we add 1 atm to 4.5 atm?

[kingofyt]

Thank u sir tomorrow is my 11 class final exam and this helped me really

[SWXSTXK]

Thanks broooo thanku so muchhh 💜💜💜💜💜🙏🏻🙏🏻🙏🏻🙏🏻🙏🏻

[mayflowerimpact]

For the last problem why would the pressure in the tank be 5.5 atm. The problem says the tank is sealed. Wouldn't that mean there would be no atmospheric pressure inside the tank?

[hvefieg]

6:24 i thought it's sealed thooo, so usually we assume it's in a state of vacuum, right? And the only pressure present should've been just the gauge pressure..?

[rababhassani]

thank you o much for all the explanation
i am a medical student and i hope someone could explane to me one of the application of this theory in medecine
it s about the Torricelli-Bernouli sign in gastrointestinal stromal tumor necrosed with and ulcer within the lumen of the stomac

[shibaneethakur]

Hey
How can you say p1=p2
Because area of hole is small than area of the upper part of open tank, so if area is different pressure must be different
(Taking about molecular force on the water molecule)

[BrofazoKouchom-xygf]

Sir pls how can we calculation the time when the water is discharged

[ZULFERISYAHPUTRA]

Dear Problem : One hydraulic cylinder, the end is connected to the Threaded rod so that it can be rotated. Cylinders with a bore size of 18 mm, 10 mm rod and a stroke of 300 mm single acting in a condition that is filled with oil. If the cylinder is rotated 10 mm.
a. How to calculate it
b. What is the gauge pressure

[Chivende]

I love you ❤❤❤, I'll make sure to pass and make sure your energy never goes to waste because you are heaven sent for me🎉🎉🎉🎉

[gojostore.official]

v1 became zero because it is the initial speed of the particle? or im wrong, pls help

[grizzyprops]

Why we need to assume that both pressures are same?
It actually isn't

[nicolotraboni]

um... hi. i have a question. why does he multiply by 2 in 1:59?

[twiringiyimanaemmanuel]

Thank you bro.tell me when i make three similar cylinders but using three liquids differ in both density and viscosity can i expect to came up with similar results of velocity. i spent 4 years without learning physics.

[alexgutierrez]

Whats the difference between bernoullis equation and toricellis theorem