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 …

Jul 20, 2025 · As far as I know, if we have a wave function as a sum of many momentum eigen function, i.e., ##\\psi=\\sum_k \\alpha_k e^{i(kx-\\omega t)}##, the group velocity is the velocity …

May 20, 2024 · The “Addition of Velocities” formula (more correctly, the “Composition of Velocities” formula) in Special Relativity v A C c = v A B c + v B C c 1 + v A B c v B C c is a …

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 …

Dec 3, 2018 · The goal of this post is to present Bernoulli's equation, its derivation based on energy conservation, and interpretations based on both momentum and energy conservation, …

Sep 19, 2010 · Homework Statement An object is shot (from a cannon) at an angle of 33 degrees and landed 85 m away. Calculate the magnitude of the initial velocity (Hint:Look at the x …

Find (a) the impulse of the force, (b) the final velocity of the object if it is initially at rest, and (c) the final velocity of the object if it is initially moving along the x - axis with a velocity of 22.0 m/s.

Aug 15, 2023 · Introduction The applicability of Newton’s second law in the oft-quoted “general form” was an issue in a recent thread (see post #4) in cases of systems with variable mass. …

Nov 30, 2015 · Here, is the static pressure, is the total pressure, is the density, is the velocity, is the acceleration due to gravity, and is the height. The static pressure essentially represents a …