Recent content by barak

thanks a lot guys u all helped me

1. I need to find a condition that the equation will have a integration factor from the shape K(x*y). (K-integration factor sign) 2.the eq from the shape M(x,y)dx+N(x,y)dy=0 ,not have to be exact!3. i tried to open from the basics. d(k(x*y)M(x,y))/dy=d((k(x*y)N(x,y))/dx. and i used the fact...

sounds great ill try that, thx

hey there, i haven't find a better foru to post this, so i hope I am in the right place/ im looking for a 3d grapher saftware but good one, that can do directional directional derivative exc. so if u know about something thatll be great, thx!

well it pretty hard to explain but ill just say that the proble,m is of two balls striking each other and in the first graph is the cm graph the other one is the lab frame. I hope it will help/ and there are a lot of problems like that

hey there I am doing a lot of center of mass problem most of them with collisions , and most of the solutions I see, have a big part of "trigonometric trciks", like the way u watch the vectors in cm frame and the way in the lab frame. does anyone met this kind of solutions and have some tricks...

i forgot to put the link , sorry for the confusion. if i wasnt clear enough (sorry) I am looking only for english materials. thx

sure. my material is not in english but i thing, this will give a good prespective. thx. edit:i forgot to put the link: http://en.wikipedia.org/wiki/Variable-mass_system

hey there, i need your help, I am a student in physics and electricity engineering, and i have a bit of a problem with the changing mass materiel, well in first look he's pretty easy but i want to learn how to create my own equations and I am never getting the same result. so ill be glad if...