How to solder broken eyeglasses frame

My eyeglasses frame broken. Now it’s time to repair it. First sanding color coating, rust and clean any grease on the surface that you need to solder. Rub it until the surface looks shiny. Sanding another part until it look shiny too. Join the two part and solder them with lead-free solder wire. normal lead […]

Momentum Flux (Linear Velocity Profile)

Momentum Flux (Linear Velocity Profile)

This is a momentum problem and what we are trying to do is find the net momentum flux in the x-direction for a unit width, and we are assuming that rho is constant, and we are given the picture bellow with will help us determine our velocities. So if we write our momentum equation. There […]