437 reputation
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location United States
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visits member for 3 years, 11 months
seen Nov 14 '13 at 22:02

Mar
24
comment Why doesn't the Earth leave you as soon as you escape it?
Is it known how far one would have to travel to not feel the effects of Earth's gravitational field?
Oct
4
comment Video of Earth spinning?
Right we're not in any doubt but we always get sooo many cool photos of space from NASA, and who wouldn't want to see a video of the Earth spinning? That's something no body's ever seen before. If they can take a photo camera up there, I don't think it would be that difficult to press a record button, don't you think? That's why I was thinking it's a bit odd we don't see a video like this.
Jan
25
comment Electrical force vs gravitational force
Nope not studying for an exam either-semester just started. I was intrigued by something so I asked it. Apparently WIMP is the only one that really knew the answer-the rest of you guys just spent all your time trying to argue rather than answering questions. You lose nothing by answer this question whether its homework or not. Obviously you guys are just trying to argue about something and attempt to gain authority over this site. Last I checked it was run by the community. I am part of the community. If I claim its not homework, then its not homework.
Jan
25
comment Electrical force vs gravitational force
From the Area51 Physics proposal: "For active researchers, academics and students". I believe I qualify in one of those criteria.
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
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
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
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
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
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
20
comment Laptop self charge cable?
Well I know, but it still got me thinking..
Dec
4
comment Velocity and acceleration question
Well this is not homework I'm reviewing for a test and I already know the answers so I dont know the point of hints its just a conceptual question
Dec
4
comment Velocity and acceleration question
If I got the wrong answer obviously I dont know what I'm looking for. This is why I'm asking.
Dec
4
comment Velocity and acceleration question
Why the downvote?