Jul 20, 2025 · 20 TL;DR The relation between the concept and formula for group velocity As far as I know, if we have a wave function as a sum of many momentum eigen function, i.e., …

Aug 1, 2009 · I heard it would be possible to have zero velocity & non zero acceleration (I know the opposite situation where there is velocity (constant), but zero acceleration). Could anyone …

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 …

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, …

Jan 16, 2015 · Homework Statement If a ball is dropped down a ramp of any shape, will the acceleration always be 9.8 assuming there is no friction. Homework Equations I...

Jun 24, 2016 · Velocity divided by Acceleration gives distance? Mongster Jun 24, 2016 Accelaration Acceleration Mechanics Speed Velocity Click For Summary

May 31, 2013 · Hello, first time poster here! :smile: I need to find the speed of air directly coming out of a nozzle connected to a compressed air tank. Inside the...

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 …

Sep 6, 2013 · Hello, If I apply force on a rigid cube, I can find the torque τ as: τ = F x r Now, from torque τ I can know about the axis of rotation but how much should I rotate the cube. How can …

Jul 9, 2021 · Though average speed over a finite interval of time is greater or equal to the magnitude of the average velocity, Instantaneous speed at an instant is equal to the …