Jul 20, 2025 · As far as I know, if we have a wave function as a sum of many momentum eigen function, i.e., ψ = ∑ k α k e i (k x ω t), the group velocity is the velocity of the whole wave function while phase …

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...

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, I thought both of …

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 then multiply it by …

Jul 9, 2021 · Investigate the relationship between speed, velocity, and acceleration in motion analysis Students of physics, mathematicians, and educators seeking a deeper understanding of motion …

Apr 20, 2014 · This discussion focuses on estimating the time it takes for a person to reach terminal velocity while falling in Earth's gravitational field, considering factors such as body orientation and air …

Sep 26, 2003 · The discussion clarifies the distinction between rotational velocity and angular velocity. Angular velocity is defined as the rate of change of angle over time, measured in radians per second, …

Sep 13, 2013 · The discussion centers on the physics problem of a diver jumping from a 3.00-meter high diving board with an initial upward velocity of 1.75 m/s. The diver's velocity upon reaching the water …

May 16, 2015 · The concept of instantaneous velocity is also mentioned, which applies to specific moments along the path. This reinforces the principle that average velocity is zero when …

May 29, 2017 · The discussion clarifies that wave velocity and phase velocity are numerically equivalent, defined by the equation v = ω/k, where ω is angular frequency and k is wavenumber. While they …