Recent content by David John

Also, for the first part, it asks for the net force acting on charge 1. Isn't what I sent a photo of answer the first part of the question. I saw on another website that to find the net electric field, I have to take the net force and divide it by q1 to get a final answer in N/C. Is this right?

I was wondering if the vector arrows I drew are in the right direction? Should the vectors be acting on q1 instead?

Okay, I decided to just write it all out on paper so I can show what I'm doing. Is this correct?

I'm not sure if this is right either but I tried using a different formula, here are my steps: Fnet = kq1q2/r2 = (9.0 x 10^9)(2.0 x 10^-5)(3.0 x 10^-5) / (2)^2 = 1.35 N This is the magnitude between q1 and q3 as well, so I then used pythagorean theorem to find the final magnitude which I found...

I really don't know. I got that formula from yahoo answers. I really don't know if it's even the right formula to use

In my textbook, a similar example is given and the equation Enet = (kq1/r1^2) + (kq2/r2^2) was used. That's why I I'm not sure what formula to use. I think the final units will be in C or N/C

I'm not sure I understand what you mean? I know for some reason mass cancels out if that's what you mean. However I'm confused why only mass is canceled out and why gravity isn't

Not sure if this is what you mean but I used E=kq/r^2 to find the magnitude of q2 and q3. Then I used pythagorean theorem with the two magnitudes I found (both were 16875. So the magnitude of q1 was 23864.9. Is this what you meant or am I still messing this up?

Homework Statement At a construction site, a small crane is raising two boxes of nails on a plank to the roof. One box has already been opened and is half full, while the other box is new. The boxes, including the nails, weigh 10 kg and 20 kg, respectively, and are both the same size. c) If...

I'm sorry but I am really lost. So do I use pythagorean theorem to find the r value, then sub it into my equation. And after that, state the direction using theta?

Can you let me know what I did wrong?

Homework Statement Examine the charge distribution shown. b) What is the net electric field acting on charge 1? Homework Equations I used the equation E= (kq1/r^2) + (kq2/r^2) The Attempt at a Solution I subbed 9.0 x 10^9 in for k, 3.0 x 10^-5 for both q1 and q2, and 2m for r. My final answer...