Recent content by Kastner86

Homework Statement If 49 m of nichrome wire is to have a resistance of 16.0 ohms at 20 degrees celsius, what diameter wire should be used? Homework Equations R = \rho x L / A A = \Pi d^2 / 4 The Attempt at a Solution well i know what I'm looking for, that is d (diameter) and d =...

This worked! A big thanks to you. Sometimes just trying to explain the problem to someone else helps me solve it anyways. Thanks!

Yes, i understand the electron is accelerating. obviously, its speed increases, so its kinetic energy also increases. I understand all these concepts. I don't know which equations to use. That is where I'm stuck. All the equations I can think of using velocity have time or distance...

Homework Statement As an electron moves through a region of space, its speed increases from 2.2e^6 m/s to 6.0e^6 m/s. The electric force is the only force acting on the electron. a) Did the electron move to a higher potential or a lower potential? b)Across what potential difference...

Homework Statement Two Styrofoam balls with the same mass m = 7E-8 kg and the same positive charge q are suspended from the same point by insulating threads of length L = 0.92 m. The separation of the balls is d = 0.024 m. What is the charge q? I am unable to add a graphic at this time...

hey thanks for everyone who looked at my question. i finally figured out the answer though! the net electric force on C should be 1.2 N at 28 degrees from the negative x axis

Homework Statement 3 Point charges are fixed in place in a right triangle. What is the electric force on the +1.0 nanoC charge due to the other two charges? Basically you have 3 charges in a right angle as decribed, let's call them A, B, and C. In the upper left you have A, +0.8 nanoC...