Tuesday

October 21, 2014

October 21, 2014

Posted by **Sheila** on Thursday, May 13, 2010 at 11:41pm.

(sorry don't have picture, but it is of a square with corners -Q, 2Q, -3Q, and 4Q clockwise).

I don't understand how to start with the information I've been given, it seems like its not enough.

- Physics -
**drwls**, Friday, May 14, 2010 at 12:51amHere is how you get the force on -3Q:

Perform a vector addition to find the net force due to the three charges acting upon -3Q. There are attractive forces towards adjacent charges 2Q and 4Q (in perpendicular directions) and a repulsive force pointed away from -Q, along the diagonal. Let a be the length of the side of a square, unless they have given you a different symbol or a numerical value.

Use Coulomb's law for each of the three forces.

======================

For the net force on charge 4Q, repeat the process.

**Answer this Question**

**Related Questions**

Physics - Four point charges are located at the corners of a square with sides ...

Physics - 1.There are four charges, each with a magnitude of 2.5 µC. Two are ...

Physics - The figure shows four electrical charges located at the corners of a ...

trig/physics - Three positive particles of equal charge +11.o micro C, are ...

physics - Pls help me out. Four positive and equal charges are located dt the ...

Physics - Three point charges are located at the corners of an equilateral ...

Physics - There are four charges, each with a magnitude of 2.65 microcoulombs. ...

physics - Hi! could anyone help me to solve this problem please. Three point ...

college physics - There are four charges, each with a magnitude of 2.0uC. Two ...

Physics - Two point charges, one of +3.00 10-5 C and the other -5.00 10-5 C are ...