Recent content by radiator0505

Homework Statement a spherical shell has an outer radius R and a inner radius R/2 and carries a total charge -q, distributed with uniform charge density. A point charge +q is at the centre of the sphere. Calculate the electric field strength for R/2<r<R Homework Equations Gauss' Law The...

Oh sorry nevermind, I got it. Turns out the velocity is initially 0.1 ms-1, then doing what I said gives the answer. :)

Homework Statement An ideal liquid flows horizontally through a pipe of cross sectional area 3cm2 with a velocity 1ms-1. The pipe narrows to a cross sectional area 1cm2. 2 vertical pipes are connected to the pipe, one in either region. Calculate the height difference of the liquid between...

I'm almost done with my first year of maths and physics at university and I'm thinking of doing a bit of studying in my free time. What are some good books or subjects to look into (either maths or physics)? So far I've covered: Maths: Intro to proofs (short sections on sets, functions...

Sorry I should have said, this is a question from an exam a few years ago and it doesn't mention the mass of the proton anywhere in the entire paper. Is there a way to get the answer without knowing m? Cheers for the tutorial!

Homework Statement Write down a relation between the total relativistic energy, mass and momentum of a particle. An antiproton has a total energy of 5.00 GeV. Calculate its momentum and its speed.Homework Equations E = γmc^2 E = (cp)^2 +(mc^2)^2 p = γmv The Attempt at a Solution I've tried...

Brilliant, completely cleared that up. Thanks!

Really? Does it not matter that the particles relativistic? Is the only frame where stuff like v=s/t doesn't hold a relativistic one?

But how do I find (for example) t? I can;t just use v=s/t can I?

Homework Statement I've been going over past papers recently and I can't see how to start this one, I get confused with the reference frames and it looks like I don't have enough information to start this. "An unspecified meson has a mean lifetime , defined in its rest frame, of t =...