Relationship between viscosity and velocity in fluid mechanics
Oct 31, 2022 · The relationship between viscosity and velocity in fluid mechanics is clarified: viscosity is an intrinsic property of a fluid that remains constant regardless of the flow velocity. The viscous force, …
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 …
Phase and group velocity for the wave function - Physics Forums
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 …
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, I thought both of …
Understanding Zero Velocity and Non-Zero Acceleration: Explained
Aug 1, 2009 · The key takeaway is that instantaneous velocity can be zero at specific moments, while acceleration remains non-zero, highlighting a common misconception in understanding these concepts.
How to find the initial velocity given only angle and distance traveled
Sep 19, 2010 · The discussion focuses on calculating the initial velocity of a projectile launched at a 33-degree angle that lands 85 meters away. The formula used is Range = v02sin (2θ)/g, leading to an …
Average Speed vs. Velocity: Explained - Physics Forums
Jul 9, 2021 · The discussion clarifies the distinction between average speed and average velocity, emphasizing that average speed is defined as total distance divided by total time, while average …
Escape Velocity Question: Why is the final kinetic energy = 0?
Dec 13, 2020 · The escape velocity serves as a threshold; if an object's initial kinetic energy exceeds half the product of its mass and the square of the escape velocity (), it will not return to the planet. …
How to find angular velocity from torque? • Physics Forums
Sep 6, 2013 · To find angular velocity, the integration of angular acceleration over time is necessary, expressed as ω = ∫ (τ/I) dt, while considering the initial angular velocity. The conversation also …
How to Determine Velocity from a Force-Time Graph?
Mar 26, 2015 · This discussion focuses on calculating velocity from a force-time graph, specifically for a 3.4 kg object. The impulse of the force is determined as 8 N·s, calculated as the area under the force …