Recent content by tchounkovskii

1. Calculating Electric Charges

oh ok, see...i didn't take trig in HS :( I should have known better..oh well. thanks for the help.
2. Calculating Electric Charges

Homework Statement The question lies in the equation, I do not understand where the SQRT of 3Q or the 2L^2 is coming from? Can somebody help me with this? The professor kinda breezed by this but I cannot find a valid explanation anywhere! Thanks in advance!
3. Find the Magnitude

Ok, cool...got it thanks
4. Find the Magnitude

I think i have to multiply but I'm not coming out with the right answer
5. Find the Magnitude

yes, that was to find the total electrons
6. Find the Magnitude

Well, I know that C=6.02 x 10^18 electrons, and I have 1.245 x 10^24 electrons, also the problem states that there are 28 electrons/atom on the nickel coin... would I multiply those?
7. Find the Magnitude

Homework Statement A nickel coin has a mass of about 4.3g. Each mole (6.02e23 atoms) has a mass of about 58.2g Homework Equations I found the number of electrons on each coin, which is 1.245e24 and also the number of atoms on the coin which is 4.447e22. The Attempt at a Solution Now...