Fluids (part 11)
Loading...
Link to this comment:
Top Comments
All Comments (16)
-
You solved a question of mine that my lecturer couldn't answer. (I am from a really high world ranking Uni)
Really Well done.
One thing though, you keep calling "rho G H" "P G H" which is not right. Can you please address that.
Again, Thank you so much for your video!
-
I can't thank you enough for these tutorials! Now I understand! You're amazing!
-
that first point you made is exactly what I wanted to be clarified, so thanks!
-
Because the Areas being analyzed vary (the cross section), the velocity varies and therefore the pressure changes as well. (Pressure depends on height as well as speed flow). Because there is a variation in velocity, there is acceleration- and the force present causing this acceleration is applied by the surrounding fluid- therefore the pressure must vary when A varies, even if there is no variation in height.
-
Thank you!
-
If there was a vacuum inside the cup but not outside, would P1 equal zero and P2 equal 1atm?
-
wonderfull
-
@Froody1911 Hey, I was just going to say that!
-
aha. Another guy and I were discussing the problems with this situation if the vacuum only existed in the canister. If that were true, you'd have 1atm external pressure at A2. The situation was more analogues to soda held in the tip of a straw then a pipe.
7:46Fluids (part 12)by khanacademy24,584 views
Featured Video
161 videos
Physics- 8:35Fluids (part 10)by khanacademy22,452 views
- 9:46Fluids (part 1)by khanacademy111,234 views
- 9:49Thermodynamics (part 1)by khanacademy210,190 views
- 10:09Fluids (part 9)by khanacademy26,098 views
- 9:59Fluids (part 7)by khanacademy32,934 views
- 9:58Bernoulli's equation exampleby silencedidgood11,576 views
- 9:40Example Problems with Bernoulli's equation #2by MrBdubsSAS4,052 views
- 15:19Example Problems with Bernoulli's equation #1by MrBdubsSAS4,440 views
- 9:41Fluids (part 6)by khanacademy34,589 views
- 13:03Introduction to Wavesby khanacademy65,952 views
- 0:20Torricelli's Theoremby wolframmathematica4,321 views
- 10:03Introduction to Harmonic Motionby khanacademy77,195 views
- 7:40Centripetal Acceleration (part 3)by khanacademy40,528 views
- 10:00Potential energy stored in a springby khanacademy50,985 views
- 2:06Torricelli's Law Demonstrationby p014k199412,694 views
- 10:12Conservation of angular momemtumby khanacademy56,897 views
- 11:39Circuits (part 1)by khanacademy159,859 views
- 9:53Moving pulley problem (part 1)by khanacademy58,708 views
- 4:38Bernoulli's Theorem And Its Applicationby TutorVista56,910 views
These Bernoulli's principle vids are very clear and bright teachings, worth all 5 stars!
When you put an example of a principle, I would like to see some numbers also instead of zeros, like pressures in a vacuum. So could you put a few more fluid flow examples with numbers greater than zero. Thanks.
Laminaricflow 3 years ago 15
You are a real life hero!!!
shiza223 1 year ago 3