Is velocity ever a scalar quantity? - Physics Forums
Dec 27, 2024 · I thought velocity was always a vector quantity, one with both magnitude and direction. When it came to the suvat equations, where v = final velocity, and u = initial velocity, …
Relationship between viscosity and velocity in fluid mechanics
Oct 31, 2022 · The viscous force within a fluid will depend on the velocity gradient (aka shear rate) within the fluid. That does not mean that the viscosity is a function of velocity. Viscosity is …
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 …
Find Velocity given Force and Mass - Physics Forums
Mar 17, 2009 · Velocity is the speed at which an object is moving. It can also be thought of as the speed of a moving object divided by the time of travel. In this case, it is the speed of a body …
Exit velocity of a gas through a hole - Physics Forums
Sep 25, 2016 · Question: How does the velocity of the escaping gas relate to the diameter of the hole? I am not sure even how to approach this. My first impulse is to apply Bernoulli's principal …
Relation Between Spring Constant and Angular Velocity
Nov 17, 2015 · I was going through Periodic Motion chapter of my book and came across an equation while defining the relation between Time Period of on oscillating particle and force …
Converting velocity to pressure - Physics Forums
Jul 8, 2011 · I am trying to work with the simplified Bernoulli equation to determine how to convert a drop in flow velocity across a stenosis (narrowing) into a change in hemodynamic pressure. …
At What Velocity Does the Universe Expand and Can It Be Faster …
Feb 9, 2016 · You may sometimes see statements that cosmological inflation caused the universe to expand faster than c, or that the edge of the observable universe occurs at the place where …
Absolute velocity, CMB, and doppler shift - Physics Forums
Aug 30, 2009 · You kinda answered ypour own question there. "The CMB is everywhere" "measure the doppler shift in all directions" "adjust your velocity so the CMB has no doppler …
Integrating a squared velocity - Physics Forums
Feb 8, 2012 · The integral will produce a function of velocity versus time, so the constant would be added or subtracted from the function of velocity at time = zero to account for the initial velocity.