Recent content by trah22

There was one more thing on that page that i don't quite get, when integrating equation 3 into equation 2, why is the a?d there? because E=F/q=kq/r^2x1/q, I am not quite sure on where and why the a/D is needed. And then for this one particular problem, its very similar to the above problem...

If what I am asking isn't really quite clear, i can write it out again more specifically and scan it.

On this other page of notes which has to do with the introduction of acceleration in electric fields, there are three parts of the problem that I am not quite following, i figured it would be easier if i just wrote it down by hand on the actual note sheet than typing it all out.:smile: For...

c^2=a^2+b^2 so c^2=a^2+a^2 c^2=2a^2 what about the ^2 for the c, is it just left there? because it seems like it since r=2a^2

Homework Statement I was kind of confused on how the radius for the charge on q3 by q1 is 2a^2, i attached the file for my notes regarding this. The question is at the bottom of the pdf scan. Homework Equations The Attempt at a Solution

ah i c thanks doc

Im just having some trouble on figuring out how some of the components are and how there being used for this part of the notes ( i attached another file),

Ok, i actually just figured it out, thnx for the help anyhow,

Well to find the Electric Field u have to add the electric field for the positive and negative charge. For the xaxis i undestand that its in the positive direction so its Ecos(theta)i but howcome for the y direction its -esin(theta)j, is it because its goin down? Thats for the positive charge...

weird what error comes up? maybe it requires the latest adobe, my file is in pdf. Argh I am not sure what could be wrong Is there a specific way to attach files in order for them to be posted correctly for this forum?

can someone help me out:smile:

Homework Statement Hi, my question isn't actually over a particular homework problem, I've attached a file of my notes on electric field, electric dipoles, i don't quite understand why the equation of the electric field is setup that way for the negative charge. Homework Equations...

doesnt there need to be a charge in the middle in the first place to relate the electric field to..?

Homework Statement a thin nonconducting rod is bent in a circular arc. Half is given a uniformly distributed positive charge and the other half uniformly negative. Draw the direction of the electric field at the center of the circle. Homework Equations E=Fe/qo, F=qE E=ke(q/r2)r The...

the text is principles of physics serway and jewett 4th edition, is the correct setup to the anser then -5.065x10^5(2^3/3-1^3/3) or the way they put it? Should the 1/3 still be factored out?