Recent content by Poobel

I have recently been fighting a lot with my girlfriend of almost 2 years. There is also very little sex lately. I don't initiate anything, because I'm very tired after work, and morning sex is a no-no for her. Any ideas on what should I do so this doesn't spiral out of control? I don't want to...

Just a friendly word of advice, don't call a girl "ignorant". I learned it the hard way.

OK thanks a bunch

Could you be a little more specific? Or should I just do right and left side for 3 random vectors, and thus prove that the equality is not true?

Umm yeah the question asks does blah=blah. I thought that it would not be true, however I am clueless how to put it on paper that the direction would not be the same. Should I call sum of vectors b and c a vector d?

Me again. I would really appreciate if you could help me with the following proof: a,b,c are vectors Does aproj.(b+c) =aproj.b + aproj.c Sorry for notation. Thank you.

Thanks a lot BobG. I did try to sketch.. more than once, but I guess I am just kinda slow today Thanks again.

yeah, that's what I said in the beginning, but the force then is approx 355N is that actually correct? then for part b) it would be 355N/sin 45?

ok then I can use 150/cos25 to find the friction, and thus answer a)?

then I should use 65 degrees? I am confused by the part that says perpendicular to the ground. Is it perpendicular to the ramp or the ground ground?

Fro some reason can't figure this one out: A box is sitting at a frictionless ramp, with a force of 150 N acting on the box, perpendicular to the ground. The ramp is at 25 degrees towards the normal. a)Determine the force parallel to the surface of the ramp, that would keep the box from...

This seems like a proper place to ask: -What subject(s) to avoid during a conversation while on a date? -What should not be brought up on a date? (Obviously not your previous relationship, or the size of your penis) Just want to make sure that I won't mess up. There's an old russian...

Man.. your school is freaking huge! *offtop - I shoock hands with Bill Clinton back when he was President of USA. :P Anyone can beat that? :biggrin:

Holy crap! This thread is almost a year old.. :bugeye: This has nothing to do wiht the topic.. I just had to post in such an old thread :smile:

The second part is really easy knowing your initial velocity and displacement you should be able to find your final velocity use Vf^2=Vi^2+2ad where a is acceleration due to Earth's gravity and d is your displacement i.e. distance to the ground first part with the slope though I just...