Recent content by h.a.y.l.e.y

V Helpful, I can now get the correct answer! Thanks for your time guys.

A perfectly reversible heat pump heats a building at 20deg from the atmosphere at 5deg. If the heat pump is run by an electrical motor whose efficiency is 80%, what is the cost of 1KWhr of heat supplied? (1KWhr of electricity is 6p) I am confused by this qn as I thought the efficiency, e =...

I have a problem where I am told a projectile explodes at a distance L (in the x direction) into 2 pieces of masses 1/4 and 3/4. The smaller mass lands back at the origin. Where does the larger mass land? I have tried CofM arguments but think I need to find the time it takes to reach the...

Yes, sorry I was typing that reply whilst Hall's was posted. Thanks for your help, I think I know where to go from here x

OK so I've skimmed that page and its confirmed what I've got in my lecture notes (albeit in a more complex manner!) The question remains though, how would I be expected to answer the question, given that this question is only worth 9 marks out of a possible 25 on my exam sheet?! Surely its...

Hi, I have a problem where I am given the Legendre equation and have been told 1 solution is u(x). It asks me to obtain an expression for the second solution v(x) corresponding to the same value of l. I think it requires Sturm Liouville treatment but don't have a clue how to begin. Please HELP!

Thank you all for you responses. Very kind and helpful!

Hi first time user here. I was hoping someone could please help me with the following question: A moving neutral pion is observed to decay into 2 photons each with energy 80MeV, there being an angle 120deg between their trajectories.Calc i)The total energy of the meson ii)The momentum of...