Homework Statement
If a system is composed of n particles that are freely moving is M(system)=M(total masses of particles)(sum)
Homework Equations
The Attempt at a Solution
of course no , but these particles isn't photons or electrons my doctor didnt exacly told me what are they...
if a system of particles is composed of n freely moving particles .is the mass of this system qual to the sum of the masses of the individual particles ?
well of course no but the idea is those particles if they are freely moving so there is empty spaces and if there an empty space that those...
i remenber those kind of question your question is so easy that even you don't need any kind of equations just mathematics think this is a hint (the beam is horizontal and the wall is at left perpendicular to it and at right the cable is letting it to be on equilibrium so what to do well try to...
ok deltaT=T of observer at rest
v=Vx(0.6+0.6)/(1+0.6^2))=0.88c
and for the gamma the v inside it =0.88c ?
deltaX= (l=50km((1-0.6^2)^1/2))/
thanks in advance
just tell me if yes or no because its 10:00 pm over here and tomorow i have to give it to my doctor no offense but thank you just tell me yes and i will study more...
my mistake the answer is ? for observer at rest T=50km/0.6c
and for the observer at A is T= (l=50km((1-0.6^2)^1/2))/(vx=(0.6+0.6)/(1+0.6^2)) if yes I am going to give a big thanksssssss