Absolute Pressure vs Gauge Pressure - Fluid Mechanics - Physics Problems

[@TheOrganicChemistryTutor]

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[@fizixx]

So, if you use a gauge to measure the air pressure in your tires is that absolute pressure or gauge pressure?

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yo, that's not a diver. That's definitely a corpse. (Amazingly helpful video as always)

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The most helpful channel in youtube.

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You’re the best 👍 great way of explaining. Much better then my professor 👩‍🏫

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Lol

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saving students academics, one video at a time ❤

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The best channel on KZbin Really

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I'm here because my teacher didn't teach us lol.

[@hamzakamara9034]

Preparing for a test

[@aregahegngebreeyesus3189]

Best explanation

[@larabosnjak9480]

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[@memangibloyoustraightaway1642]

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[@claireamba8784]

It is a well-explained tutorial. I now understand the basics. Thank you.

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Your videos are awesome and helping me pass my power engineering exams!

[@andrewzeppy]

So helpful 😇 may please do for me this : A wooden cylinder with cross-section area of 50 cm^2 floats in water. The visible part of the cylinder is 8 cm. 1. Using Archimedes' principle derive the following equation for a partially submerged cylinder (height of the cylinder / height of the cylinder below fluid surface = density of fluid /density of object) 2. Determine the height of the cylinder below the water surface using equation in 1. 3. Determine the weight of the cylinder.

[@Kurosaka]

yo andrew I hope it is not to late but I will link a mega link that has a worksheet that solves this question hope this helps bro

[@Kurosaka]

I sent it hope it helps

[@ניין-י9ש]

@@Kurosaka it isn't here :(

[@ניין-י9ש]

@@Kurosaka youtube deletes links So paste the link and add a letter at the end so that we can copy paste it and remove the letter

[@k-low_67]

It's 2024 and I'm here, since grade 11 and I'm now a first year in uni. From SA 🇿🇦

[@rainbo7194]

hello sir! thank you for this simple yet understandable tutorial :) i have a question though, when an object is just at sea level (say, an automobile tire with given 24.2 psi) do i still need to convert the given gauge pressure to absolute?

[@KINGXMAGS]

Thank you so much

[@lahirunethmina2942]

Good explain❤thankyou ❤

[@amirdhb8991]

best explanation ever

[@sarcadistic9762]

oh gosh I finally understood the concept thanks to you!

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This lecture is amazing! I am easy to understand! Thanks!

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This channel is awesome but I recommend that you call rho “rho” and not pe :)

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[@mohammadalemsafdari4191]

Very clear and useful. Thanks

[@LND24]

It's so simple with a good teacher ha

[@abdulbaitsdehanapadmaswast768]

thanks for the useful materials. very helpful

[@mihlalizungu8180]

still using it as my reference thank you sir:)

[@misslunaaar]

For Question 5. How did you know Gauge pressure was using the oil and not the water? Is it because the oil is in contact with the atmosphere and the water isn't?

[@cleopatraervinna2700]

im wondering abt tht as well

[@kienvo9072]

great explaination ! thanh you

[@revolutionaryfrog]

When I get my diploma I'm just gonna mail it to this guy lol

[@kyugreywolf6801]

Great video, thanks ^^

[@anashnz77]

Im confused by this video because at the beginning you describe the guage pressure as being the difference between a total pressure and the atmospheric pressure, but then further on you calculate the guage pressure of the water and oil but there is no mention of finding the difference from the atmospheric pressure. What am I missing, cheers

[@baaittyy]

Great video!!

[@abdulrahmanalfaqih5528]

So Helpful. THANKS

[@Phishcactus]

I think #4 is wrong, you swapped Pg and Pt, so the #'s are correct but the total pressure is 307.1 KPA and the gauge is 305.8 (Pg = P - Po, where Po is 1 atm)

[@yusufdogan7215]

THANKS A BUNCH

[@boydgondwe1118]

Thanks for your effort.....

[@gr1mmer26]

hello mr just wanted to report a potential mistake in your calculations (please correct me if im wrong) at 12:18 the addition of the both gauge pressures [58800+14700] adds up to 695800 which you have mistakenly written as 205800 pa . PLEASE tell me if im going wrong somewhere

[@mhamadhaider5736]

Thank u man

[@HiwotAyalew-i1l]

THAT"S WHY HE"S THE GOAT

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THIS IS WAY BETTER THAN MY $9000 UNIVERSITY EDUCATION!

[@nurhanieathirabintimohdsal1416]

thank you

[@Mapcuber]

Actual life saver

[@tectonic_art9101]

why don't you put all fluid mechanics related videos in one playlist , please

[@b07_ashishsuradkar49]

Thank you sir

[@harrytv8302]

If you compute the absolute pressure of oil and water separately, you would arrive with different answer. But in this case, gage pressure were computed first before adding the atmospheric pressure.

[@xsqirat6597]

thank u so much

[@koondoog4282]

Why is the gauge pressure called the pressure "above" the atm pressure if it is the pressure "inside" the tank?

[@TerrorSab]

idk either :/ someone know?

[@cashew9405]

kzbin.info/www/bejne/g3vCq52Nrrd7jpo thiss video gives a good description as to why

[@wesammaleh6328]

Thanks for this great explanation. However, in example #4, shouldn't the atmospheric pressure at 50 meters below sea level be equal to 101.3 x 6 atm considering that the atmospheric pressure until a depth of 10 meters will remain constant at 1 atm then it will increase every 10 meters deep by 1 atm.

[@judebagsao4668]

Thank u

[@opti-prof]

thanks!

[@tougniawilde1094]

i got a question.To calculate the gauge pressure why dont we consider too the weight of the water beneath that of oil?

[@sargamgandhi8273]

Sir can't we add both of the densities of water and oil...for bottom Guage press....in last question

[@mahmoudfarid3957]

I love you Dude..I love youuu

[@mewsicman9541]

7:26 why didn't he minus the 101.3 kPa?

[@TiberiusStorm]

Our teacher made us memorize a formula. PSI = Height in Inches x Specific Gravity / 27.7" H2O. I'm not sure why though. Can you explain this formula??

[@Big_Steve11]

no

[@maha737]

يسعد امك ياشيخ على ذا الشرح الفنان

[@olufemioladipo683]

at 10:16, how did you know that the weight of the atmosphere was 101.3 kpa? I thought this was for sea level. Did you just make that assumption? thanks

[@avafaghihi9763]

When the question doesn't tell you anything about the atmosphere level you must assume it to be the sea level atmosphere

[@ניין-י9ש]

@@avafaghihi9763 so I always use that number if it isn't given?

[@avafaghihi9763]

@@ניין-י9ש yeah but it's usually given in exams.

[@ניין-י9ש]

@@avafaghihi9763 ohh thanks!

[@IliaDehmohseni-bf7qb]

why do we use absolute pressure and not gauge pressure when the container is closed?

[@jailewis7356]

On example 5 where did the 101.3 come from?

[@annaharshaw6211]

maan, I love you

[@IliaDehmohseni-bf7qb]

why do we use aboluste pressure and not gauge pressure when the container is closed?

[@lucasargandona4658]

Hey. This is easy!

[@lqa2084]

Can I ask a question, what if the given in the last example is the specific gravity? How can I compute that, for example the Poil=.5 and the H20=50kg/m^3

[@lqa2084]

i already found out how, thnks for the video.

[@boysrock4546]

a 3 hour Uni lecture in 13 minutes bro

[@pashenw5519]

Coming here for physics course 😅

[@shivanshuverma9090]

Beast mode on

[@mohamedghali9889]

i think there is a mistake cause you are adding kpa to Pa without considering conversion before so basically the Patm is used as kpa

[@zalim2productions]

wouldnt the height for question b be 15+8, not just 15? or that a depth of 15

[@strawberry_but_413]

where did u get the value of atm in roblem number 4

[@gingineerdeeno406]

Constant value. 1 atm. = 101.325 kPA

[@meronkibrom3319]

I wanna talk to the 27 people who disliked this video. LOL!!

[@rexmagat4051]

nice

[@alyssarubick9970]

why is Patm @8:28 101.3?

[@krishnazzerladica1056]

P=pgd = (13.6)(9.8)(0.760) = 101.2928Pa if significant figures that will be 1.01x10^5Pa

[@kauze8063]

Pressure of the atmosphere

[@kauze8063]

1 atm = 101.3kPa

[@fikertedesalegn9878]

At the start I was waiting to hear "in this video"

[@t-shirt855]

So the pressure gauge formula is pgh?

[@MrHisham2000]

yes

[@matthewvorndran6931]

dude you are a god

[@anilsharma-ev2my]

Show actual data of actual aneroid barometer in energy terms

[@vasuramv5639]

Why did u calculate volume of cylinder in btw 4th example to find gauge pressure formulae..pls say...

[@candieunicemariveles1013]

Vasu Ram he just use it as reference

[@rllrll9512]

He just tell that to let you know how pgh was derived.

[@al_idme907]

عاشت ايدك

[@wooglet5203]

Wait this just solved the whole unit im in

[@jerichopenaojas7856]

Ang galing mo

[@SadistRaddist]

for question number 4 i think he miscalculated the absolute pressure. it should be 502.25k + 101.3 = 502.35k. anyone else ?

[@jnv1971]

No. It's 101.3 kP, not 101.3 P. So the calculation is 502.25 kP + 101.325 kP

[@rllrll9512]

How to get the unit of pascal out of (pgh)??! Anyone here now?!

[@sharaa___9259]

You're a beast

[@pragneshsolanki4949]

It's best

[@halobaby0331]

thanks :DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD =3333

[@ggrimaldo1]

WTH is atm?

[@a.chandrukumar7979]

Atmospheric pressure

[@cilva7able]

Does 4.2 ATM mean 4.2 times the standard 1 ATM? Anyone know?

[@قناهالنور-ر5س]

mike jackson yes

[@LucaMathias-t7j]

i love you

[@gamershh3364]

pa shout out po sa LU

[@bokadem]

I love you

[@RonneAenTablizo]

can u solve our problems number 4 7 8 9 10

[@ND-zj2xe]

God why is this concept so hard to understand

[@twanakoye8047]

😍😍