Relativity

A satellite is at rest in space when destroyed by a hostile alien space ship. One piece that is 100 kg floats away at a speed of 0.80C. Another piece floats away with a speed of 0.90C away from the explosion in the opposite direction. What is the mass of the piece that flew away in traveling at 0.90C. Determine this two ways. 1) by including special relativity 2) by ignoring special relativity Please be as detailed as possible. Thank you

Binding Energy

I would like to have someone show me step by step how to calculate the binding energy for deuterium and tritium.

radial wave function stuff

This question comes from the second edition of Griffiths' Introduction to Quantum Mechanics. It is question 4.46 (a) Use this reursion formula: c_j+1 = (2(j+l+1-n)*c_j)/((j+1)(j+2l+2)) to confirm that when l=n-1 the radial wave function takes the form R_n,n-1 = (N_n)*r^(n-1)*e^(-r/(na)) (b) calculate and for states psi_n,n-1,m

Perturbation of a negative potential time dependent problem

Hello, I am trying to calculate the probability that the n = 3 state will be excited at t = infinity for the case where b<<< a. and to show that for any value of b only the odd n states will be excited at t = infinity. my initial conditions and setup are: V(x,t) = Vinit(x) exp(-lambda times t) where I have a negative potential in the center of an infinite square well for the case where the perturbation fades away exponentially in time. I set my potential at -V in the center between the -a and a boundaries and the perturbation extends from -b to +b in the center so the pertubation is as follows: Vinit(x) = 0 for -a < or = x , -b Vinit(x) = -V for -b, or = x , or = b ... click for more

Quantum Mechanics: Time Indep perturbation negative potential in an infinite sq well

Hi, This is a problem that I have got a solution for but would really like to have a second check to make sure that I have done it correctly. I have a negative potential, -V in the center of an inifinite square well. The well extends from -a to +a and the unperturbed wevefunctions are: Si sub n (x) = sq root 1/a sin(n*pi*x/2*a) for n even Si sub n (x) = sq root 1/a cos(n*pi*x/2*a) for n odd The perturbation extends from -b to +b and is given by: V sub 0 (x) = 0 for -a , or = x , -b V sub 0 (x) = -V for -b, or = x , or = +b V sub 0 (x) for =b, x, or = +a The first part of the problem is to calculate the first-order Time independent perturbation c... click for more