Homework Statement
\frac{2x + 2}{x^2 - 2x + 1}dxHomework Equations
The Attempt at a Solution
I factorized the denominator and got \frac{2x + 2}{(x - 1)^2} and I took a look at the solutions manual to see how they handled this but then I see this \frac{2x + 2}{(x - 1)^2} = \frac{A}{(x - 1)} +...
When light enters a substance that polarizing it by scattering does that mean that the medium sends all the consituent light waves off in different directions depending on what direction they are oscillating in? In other words does the scattering of a beam of light split it into it into a load...
I just started learning the concepts yesterday what I've got so far is that if I have a screen with 2 slits each of a width equal to or smaller than the wavelength of the light then the slits can be considered single point sources of waves. If I place another screen far away from the screen with...
If I'm not mistaken polarized light consists of light waves vibrating only in a specific direction because the waves vibrating in other directions have been filtered out. I watched a video on youtube and the guy showed how putting 2 polarizing filters together in a certain alignment so as they...
Ah yeah that explains it thanks. I do like to understand things visually first then use the mathematical approach to verify my understanding and unravel things I wouldn't have spotted.
When an EM wave goes into say a denser medium and its velocity is decreased how does its wavelength and frequency change? I read that the frequency remains constant but the wavelength changes. Is this true? If so does that mean the wave gets compressed when it enters a denser medium. Does the...
If you leaped onto an electric fence would I be right in assuming you wouldn't get electrocuted as long as you don't provide a path for the charge to neutralize itself?
Ah that explains it. I wasn't thinking of the dx being replaced by du. Thanks alot. Its funny how something which seemed incomprehendable falls into place in a matter of seconds once after making a small connection. That LaTeX code is fairly cool.
I'm having serious trouble with the concept of u-substitution. Using this as an example
int 2x(x2−1)4
I make u = x2−1
first thing I don't get is why du/dx = 2x is rearranged to du = 2xdx. Second thing I don't get is where the dx dissappears to. In this method is 2xdx just being represented as...
Thanks. The theme of that site is the mind and methods of optimizing and altering it but my life obsession encompasses nearly everything science related so I had to throw it in
http://toxicopoeia.com/?get=science
Dunno how I'll integrate it in but I suppose it all goes hand in hand. Scientific...
I started up a database of problems and solutions for physics, chemistry and maths. Take a look
http://toxicopoeia.com/?get=problems&cat=physics
I've only added physics questions at the moment. All the variables are randomly generated so people can keep practicing the same kinds of questions...
Thanks for the replies. I'm in the first year of uni. Didn't go to high school so I'm pretty much self taught but there are certain areas I skipped. Identifying ions was one of them.