
Calculating Nozzle Flow Rate To work out the flow rate of water from a nozzle we need to work out the volume in a given period of time. To do this we work out the area of the nozzle and …
Understanding Zero Velocity and Non-Zero Acceleration: Explained
Aug 1, 2009 · I heard it would be possible to have zero instantanous velocity & non zero acceleration (I know the opposite situation where there is velocity (constant), but zero …
Air flow through a 90 degree bend - Physics Forums
Sep 18, 2007 · Fluid flows at different velocities within a pipe’s cross-section. For well-developed, ideal flow, the fluid velocities will be highest near a pipe’s center, decreasing towards the pipe …
Addition of Velocities (Velocity Composition) in Special Relativity
May 20, 2024 · The “Addition of Velocities” formula (more correctly, the “Composition of Velocities” formula) in Special Relativity is a non-intuitive result that arises from a “hyperbolic …
Velocity of gases in a flue / stack - Physics Forums
Jul 18, 2016 · The upward velocity of the gases at the bottom of the chimney might correspond to a lower pressure inside the chimney than outside (at the bottom), but the pressure inside the …
Speed of falling object underwater - Physics Forums
Jul 25, 2019 · Is there any formula for underwater falling sphere which can measure the velocity of that sphere at any time before it reaches its terminal velocity? A sample question is: I …
Solving for distance using only initial velocity and coefficient of ...
Nov 24, 2008 · Actually, althought relating the Kinetic Energy equation to the equation about friction and distance might be conceptually valid, it isn't the clue this person needed. At the …
Velocity of Fluid flow due to gravity - Physics Forums
Apr 28, 2015 · Energy conservation is sufficient to get a good estimate - if some mass m leaves the pipe at a height h below the water surface of the tank, its kinetic energy is m*h*g, this …
How Do You Calculate Closing Velocities and Determine Their …
Aug 28, 2016 · If I'm not mistaken, the closing velocity is the velocity that the planes get closer to each other. And the closing speed is its magnitude, that is, the rate of change of the distance …
Finding speed of projectile propelled by pressurised air
Oct 27, 2012 · I have a projectile of 4 grams, an air tank of 120 psi, a barrel length of 80 centimetres and a barrel diametre of 8 millimetres. I would like to find the ideal speed (muzzle …