Recent content by Sweeney

I was doing (ii) in the following question. The ESB supplies electrical energy at a rate of 2 MW to an industrial park from a local power station, whose output voltage is 10 kV. The total length of the cables connecting the industrial park to the power station is 15 km. The cables have a...

Recently I was wondering why deodorant is cold when its comes out of the spray can. Some explanations say that it is because of a change in pressure. But looking at the ideal gas law T = PV/nR and both n and R are constant. And for every decrease in pressure there should be an increase in volume...

I was thinking of making a cloud chamber and have looked at several videos on them. I noticed several different types of trails and was wondering if anyone can identify which particles they belong to i.e. alpha, beta, muon. I'm am particularly interested in Muons and I won't be using any...

Absolutely perfect answer! I finally can understand it.

I'm finding it difficult to understand how momentum is conserved in an inelastic collision, but kinetic energy isn't. I understand some energy leaves the system in the form of sound and heat. If we look at the momentum of the system before and after the collision, P=mV, they are equal, due to...