437 reputation
11221
bio website
location United States
age
visits member for 3 years, 10 months
seen Nov 14 '13 at 22:02

Jan
25
accepted Electrical force vs gravitational force
Jan
25
comment Electrical force vs gravitational force
No I understand. I've been using this site since the first day it was launched, and everytime I asked a question, it was such a pain to get anything near to an answer. An answer is not even what I want sometimes, but if you want to give hint, then give a reasonable hint. I think you guys (people who answer questions) try way too hard to play the 'teacher' role. This is a virtual environment. We cant play give and take for 12 hours like we can in a face to face conversation. It just doesnt translate to the online world. The format is messed up, and I find it very hard to benefit from any posts
Jan
25
revised Electrical force vs gravitational force
edited tags
Jan
25
comment Electrical force vs gravitational force
Eh you guys are annoying about HW. This is not homework. It something for us to think about. I also said previous, meaning it was for a previous semester lab, also meaning I ask this question because I am curious, not because I need the answer.
Jan
25
asked Electrical force vs gravitational force
Jan
24
awarded  Popular Question
Jan
24
comment Calculating electric field
Well I'm in Calc III now, so we just started Vector stuff, but we had a basic vector review in last semester's Physics course. I just need a little review maybe..
Jan
24
comment Calculating electric field
Ok so I came up with an answer of -15585 but the system told me I was off by a power 10, so I added two more zeros to get the right answer. But I have no idea what I did or what you did :( What is n1? I put q1 has -2.4 then multiplied by $10^{-6}$. Then divided by $2*.7^2$ which is .98. Mutliplied by K, and took the cos45. What am I still doing wrong? I got the right answer, but I just want to understand it more..
Jan
24
comment Calculating electric field
You sure about the distance? I think you forgot to take the square root, no? $.07^2 + .07^2$ then take the sqrt and you get .098..
Jan
24
comment Calculating electric field
Ya I changed that to 45. But where would I be able to factor out a K?
Jan
24
revised Calculating electric field
edited body
Jan
24
comment Calculating electric field
Also it should have been .1 meters rather than .01. But that still isnt helping. What else is wrong with my work?
Jan
24
revised Calculating electric field
deleted 1 characters in body; deleted 1 characters in body
Jan
24
comment Calculating electric field
Oh woops should be cos(45). But that still isnt giving me the right answer..
Jan
24
comment Calculating electric field
I'm still learning about vectors. How would I use them here?
Jan
24
revised Calculating electric field
added 16 characters in body
Jan
24
comment Calculating electric field
Oh .01 is in meters. I converted from cm to m because thats the way the E equation is set up..
Jan
24
comment Calculating electric field
How is it incorrect?
Jan
24
comment Calculating electric field
What do you mean?
Jan
24
asked Calculating electric field