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  • Vertical circular motion minimum speed proof - Physics Forums
    so the body reached the top let's take what happened so far, in reverse now the body has velocity of (rg)^0 5 to the other side, mg is still downward we KNOW the body will complete the half circle reversed motion, because we've just seen it complete it
  • Finding Velocity given x and y velocities - Physics Forums
    1 How do you find the velocity of an object if you are given the x and y components of the velocity? 2 Not sure! 3 It makes the most sense to use the Pythagorean Theorem to find the magnitude then trig to find the angle, but I've got a classmate telling me you simply add together the x and y components Which is it?
  • Calculating Nozzle Flow Rate - Physics Forums
    for measuring velocity of water so we have to calculate velocity using head calculation or from stagnation pressure which we measure using a pitot tube Calculate Velocity from Head We can use Bernoulli's Equation to calculate velocity of a fluid from head Head is the distance from outlet to top of water V= 2gh V = Velocity m sec or feet per sec
  • Converting velocity to pressure - Physics Forums
    Radiologists often use Doppler ultrasound to measure flow velocity change in a blood vessel with a stenosis- but I would like to make a conversion to a pressure differential Equation: P2-P1 = (V2^2 - V1^2) 2 (assuming frictionless system, blood density ~ 1 0 gm cm^3, and no change in height)
  • Average Speed vs. Velocity: Explained - Physics Forums
    Imagine a particle spiralling into the origin in smaller and smaller circles in finite time The average velocity depends on the decreading radius of the circle But the average speed depends in how many times it goes round the circle You should be able to construct it so the the final velocity is zero but the final speed is infinite
  • Permeability of Metglas and Propagation Velocity - Physics Forums
    The first is the velocity of wave propagation along the boundary between the material and air or space That will be close to the speed of light, slowed down by the dielectric constant of the surface coating The second is the velocity of propagation into the material, perpendicular to the surface, which is much slower
  • Velocity of Fluid flow due to gravity - Physics Forums
    For our purposes, in this project we are assuming the height in the tank is constant, as you said This will ensure a constant pressure at the bottom of the tank, in theory keeping the flow of water constant I originally thought I could use the kinematic equations of physics to solve for the velocity after free falling a certain distance "h"
  • How Do You Calculate Closing Velocities and Determine Their Range?
    If I'm not mistaken, the closing velocity is the velocity that the planes get closer to each other And the closing speed is its magnitude, that is, the rate of change of the distance between the airplanes If the planes are at positions $\mathbf p_1$ and $\mathbf p_2$ and have velocities $\mathbf v_1$ and $\mathbf v_2$, then the closing


















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