Recent content by yup790

What would I replace it with? p-pm is a bit redundant

Homework Statement Homework Equations et Em and pm be the energy and momentum of the mass m after the collision. Let p and p' be the momentum of mass M before and after the collision. From conservation of 4 momentum: \begin{bmatrix}E+m \\ p\end{bmatrix}=\begin{bmatrix}E_m+E' \\...

For college we have to write a 3000 word essay on a subject so an idea I had was to firstly explain the maths/physics behind music and then break up a piece of classical music into its sine waves. However, my acoustics knowledge is limited. Does anyone know of a good book/books that explain...

I am planning in making a boiling tube that heats up to about 200c without a flame. I was thinking a coil of wire and a 9v battery (portable is always better). How would I make the wire hot - 200c/300c with only a 9v battery.

I am reading the book Road to Reality by Roger Penrose. However he goes over the maths so fast I don't understand it all, I am studying maths and Further maths and getting over 90% almost all the time so maths normally comes quite easily. What maths topics do I have to know - the contents...

I looked at them, they seem to cover every area i can name, that's good. I was going to get the road to reality by roger penrose, but this now seems obsolete after the fynman lectures. Is it?

my school has those. Are there any areas they don't cover?

I like reading. I am currently in alevels but I find the physics and most of the maths easy, some of the further maths takes a bit of thinking. Are there any textbooks that cover the majority of the 3 year bsc physics course in a readable way. Thank you.

Its more the fact that they don't cover all the topics, only mechanics, waves and magnatism.

I have itunes u, however, the same problem. Are there any courses that cover evrything: classical mechanics, thermodynamics, condensed matter, quantum mechanics and relitivity., and whatever else I missed off. They don't have to be from the same uni. A recommended order would be nice...

I know about and have watched some lectures., namely the MIT lectures. However, the majority are classical mechanics or incomplete. I was wondering if someone had an orderd list of free lectures covering all 3 years of physics. Quantum mechanics, relativity, solid-state, etc. I would be...

Thank you. Is there any proof for this. I learn better when I understand the theory behind a topic.

When you want to get velocity from accelleration i have been told you integrate. Howver v=at and so surley you can just multiply each term in the accelleratin expression by t. ie: a=4-0.2t Surley you can just: v=(4-0.2t)t v=4t-0.2t2

For my physics teacher I had to reaserch and wriet about parrallel universes. I understand the many big bng theory and the many worlds interpretation for universes. However, i don't understand how a big bang can allow an infinite universe. If there was a starting point at the universe...

Yes As far as I know there are three versions of parallel universes. Firstly is the infinite universe. This means that there are infinite numbers of observable universes. Each is like its own universe. This also implies that there are repeats of this world within our own universe...