Pressure at a depth in a fluid | Fluids | Physics | Khan Academy
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- Опубліковано 18 кві 2008
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Sal finishes the calculation or work to determine the mechanical advantage in a U-shaped tube. He also explains pressure and Pascal's Principal. Created by Sal Khan.
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Sal Khan = gift from God!
Know that every person is a gift from god to the earth
@@visulahametikalla1688 😐
he is our our Bangladesh's PROUD ,,
@@DoggyD.electro sry sal isn't LGBTQ
Khan Academy is whats keeping me moving on in first year engineering...Thanks:)Thanks alot!
I'm studying physics and Khan Academy is making me keep on moving, thanks god, there was a time in witch i couldnt see the light
"there was a time in which I couldn't see the light"
Wow!
Trahn-Jahn lol
"hikari" > "light"
Good luck for your future, if you're still doing physics.
No light, haha, photons are not happy
Yo its P sub d and im listening to my pal, Sal
He'll tell you everything about Pascal.
But don't worry, he wont make it complicated
What he will do is make your teacher seem overrated!
My man Sal's main mission
Is to make physics part of your intuition!
Its P sub d and im over and out!
Sal is the best beyond any doubt!
[dont hate. participate ;)]
Aint hatin', participatin'
Sals methods, elucidating
His knowledge, exuberating
If I could like this twice, I would
@@ankitaaaryabars be 🔥🔥
@@ankitaaarya
14 years after these original comments
people still be lookin at Sal's physics lessons
people like me have an exam to ace
but as long as Sal's alive there is nothing we can't face
Sometimes when my teacher be babblin
Sal's physics lessons are things I be searchin
So no matter how old or decomposed these comments are
We will carry Sal's legacy really really far!
Thanks 😊 sir .
9 minutes ago i had no clue about this topic, but you derivating this equation simplified everything in my Physics Prac book.
...gotten rid of the atmosphere. That's very negative, so we wont think about it..." solutions to all your problems in life
You are the only reason I'm going to pass physics this semester.
Hmm liar
Well... did you pass?
Yes.. I agree with the rest of the comment that you explain well..and clearly...bravo...and thank u
man, i just love you, the jokes that you make during the video had me dead. I am having a good time and i am learning at the same time.
this was the exact question on the thing i was stuck on!! thank you so much
Just perfect
U explained it clearly sir
You teach patiently sir
F=PHAG now you will never forget
no wrong it's not P its row plz its wrong P is pressure
+madhurima bhandari its NOT even 'row', its 'rho'. A greek alphabet.
12 years later..still watching 💕
15🙂
I like the different colors.
this is awesome
Groovy for engineering... deep ocean and other planets expiration as well. Dig the educational videos... limitless potential!
I love these videos ... they are so clear and informative! A*
The only thing that could be improved is the accuracy of the drawing : )
THis is awesome and it’s seriously 12 years old and now I’m watching it with popcorn
Thank you very much sir , it so clear lol
Could you please make a video on the limit version of pressure? Where pressure = lim( Fnormal/A ) as A goes to A’ , where A’ is the area at a point in a fluid at rest.
I thought u were the teacher I needed then u wrote g=9.8 instead of 10... By the way Thanq for the Vdo 💓
Thank you, you are doing an excellent job! Really, thank you so much!
You still there?
downward force = density times volume times gravity
Good practice is to derive this all BY yourself. YOu'll know this stuff so well if you do that.
lol, the solar winds blew the air away xD "That's very negative, so lets not talk about that" funny man, man!
Sal, you are a life saver. Really, when you teach everything makes sense. Thank you so much. May God bless you. :')
is a good teacher better than my teacher in the Philippines
hey sal I am ur no. 1 fan
integrating ict in teaching made more enjoyable
heyooo, I have a question: sometimes, the force exerted on the upwards direction is calculated by this equation: F'= (P+ΔP) x A. What does the ΔP stand for? I really can't understand this equation, as the force upwards is equal to the force downwards...
keep up your videos, I've already subscribed to your channel and also registered to your page! thank you for making physics so more interesting :)
nice
This is so educational and so entertaining at the same time. Good to know that F=phag, xD
yep
6:15 That's only true for cylindrical vessels. If you instead assume a conical vessel, the volume would be 1/3*A*h and so you get P=1/3*p*g*h Could anyone explain this to me please? It's been bothering me for 12 years 😖
should the gravity be taken with -ve sign for force upward?
I'm confused. Density is a function of pressure. Pressure is a function of height. Mass of the liquid above the reference point can't be just *area * height * density* as density is constantly varying over height.
7:17 haha
What is providing the upward force???
1:16 "That's very negative, so we won't think about that." #swag
2:40
8:24 this little piece of ......
Foil 😄
Now I want to eat melted marshmellows with a lead spoon. : )
@anava84 YESSSSSSSSS!!!!! MEGA WIN HERE.
@anava84
mic check 1 2 one 2!
lol at 6:39 he spells phag :D
I love your videos Sal and I know they'll help me on my AP physics test tomorrow
Sir is pressure at a depth h in a fluid is equal to the pressure outside the fluid plus the fluid
Haha.... "Lets Not Call It Water"... the blooper just make the whole lecture sound interesting.
Are you still using this account?
isn't it suppose 2 be 980,000Pa , if im not mistaken
Well ρ is not p
Thanks for the information sir😂😂
bob ross of science
Hi
Who dislikes this guy?
Here, it's assumed that the circular foil is of negligible mass, otherwise, the foil would accelerate downwards, I'm sure.
The foil is just used as an indicator.
The air is also a fluid, it also has a pressure on our bodies. The higher you gob the lesser the pressure. That's why sometimes blood comes out of the nose of a mountaineer , as the atmospheric pressure keeps our blood pressure sustainable. When this atmospheric pressure decreases then the blood pressure becomes relatively more, thus the blood vessels tear out and blood leaks out. A horrific situation !!!!!:v
Did anyone not HOLLER at 6:47
I'm a forth graders and I'm watching this!!!!!
you are definately not a fourth grader
If I had a dime for every pixel this video has I would have roughly seven cents.Good content though.
Please help me guys.. Where did he get the 10m for the height? Thank you.
Tirso Sr Abenoja
That was just a random value .
Lol
Me watching this on 2022
And what is G? where I the formula for gravity. you found P, and then stopped. What is G? Can you use both Density and Gravity if they are in essence the same thing? Prove gravity.
great lesson thx!
btw 'lead is more dense than marshmallows' lol
hw cn we keep water as a liquid in a vacum :D im just kidding hahaa
thnks for these free education :)
cubic meter of marshmallows XP and feathers!
OK guys who is doing a rap album titled P-sub-D
your voice is changed or seems to be disturbed
Yeah man
p sub d rap sensation supreme
@anava84 lmao
lmao, sick rap!! and vid of course... no need for my teacher
1000*10*9.8 = 9800
not 98000. lol
aditya sinha no it's correct you idiot
Amazinggggggggggg
waste
Did you just write p.h.a.g ? That's it, you just proved that physics is misogynistic and racist .
Tried to make an unfunny joke. But still missed the mark.
@@tasfiatahsin2510 chill