Recent content by Cameron95

Hi, I was reading the wiki article here on beta decay and energy release: https://en.wikipedia.org/wiki/Beta_decay#Energy_release In obtaining a condition on the masses of the initial and final atoms we neglected the difference in electron binding energies of the two atoms. Does this mean we...

In fact, don't worry - I think I understand now. Thank you both for your help.

I tried using time dilation, but I got a very small fraction of the speed of light, so I must have done something wrong. If it's not too much trouble, could you give a quick outline of the solution? I think I've confused myself too much thinking about it.

I'm not sure why x' is 0?

Homework Statement A spaceship travels from Earth to the vicinity of the star that is measured by astronomers on Earth to be six light-years away. The spaceship and its occupants have a total rest mass of 32 000 kg. Assume that the spaceship travels at constant velocity. The time taken as...

Thank you all for your help; I think it's slightly clearer now!

Ok, so what is meant by the angle 'with respect to the inner product'? Is it one of those things you must just accept is true, as I am having trouble visualising what is going on. Thanks for your responses.

Hi all, I am having trouble understanding inner products. Specifically, using inner products to find the angle between two vectors. Our lecturer has given an example, as follows; (u,v)= 4u1v1 + u1v2 + u2v1 + u2v2, where u=(1,0) v=(0,1) (u,v)=|u|.|v|cosθ 1=(√4)cosθ θ=∏/3 Surely the...