Recent content by blackbrawler

Homework Statement Figure 23-37a shows a narrow charged solid cylinder that is coaxial with a larger charged cylindrical shell. Both are noncon-ducting and thin and have uniform surface charge densities on their outer surfaces. Figure 23-37b gives the radial component E of the electric field...

but isn't the magnitude effected by the direction or angle? If I'm applying a force at a 45 degree angle the amount it moves is different than if I apply it at a 90 degree angle.

a^2 = 2r^2 (a^2)/2 = r^2 sqrt((a^2)/2) = r

i kind of skipped some of the steps but I did calculate r as sqrt(a^2/2) to get r^2 = 6um^2/2

can you see it now?

Homework Statement In the figure the three particles are fixed in place and have charges q1 = q2 = +e and q3 = 2e. Distance a = 6.00 µm. What is the magnitude of the net electric field at point P due to the particles? Homework Equations E = k*q/r^2 The Attempt at a Solution I...