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- 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
- Understanding Zero Velocity and Non-Zero Acceleration: Explained
The problem here is that you have a fundamental misunderstanding of what acceleration means in relation to velocity Consider a curve of velocity vs time At some time, t, the instantaneous velocity is zero The acceleration is the slope of the velocity curve at time t You are confusing a value on a curve with its slope
- 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"
- Solving for distance using only initial velocity and coefficient of . . .
At the early point (probably around chapter 4) of an "elementary physics" textbook, a student encounters problems where, given an initial velocity and coefficient of friction, the student is expected to provide the resulting final displacement This is a stage of the textbook where kinetic energy equations and "work" equations have not yet been
- Minimum angular velocity of a point mass on a rotating rod - Physics Forums
Because the system has no friction, when the point mass falls, I think both angular momentum and energy are conserved Further because the rod is massless, there cannot be a vertical force from mass on the rod The difficulty is to determine the property of tension It determines the subsequent
- Demystifying the Often Misunderstood Bernoullis Equation - Physics Forums
As a sanity check, we can perform a thought experiment based on a force balance (momentum conservation) If the velocity increases from point 1 to point 2, then that acceleration must be the result of a force in the same direction Bernoulli’s equation tells us that the velocity increase corresponds to a decrease in pressure
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