Recent content by caitphys

Homework Statement A satellite of mass m is in a circular orbit of radius R about a star of mass M. The star ejects 1% of its mass by means of a spherically symmetric wind which removes the mass to a large distance. What are the new nearest and furthest distances of the satellite’s orbit around...

Thanks for the response! Okay, so my thinking for ##(E_{\bar p}+m_ p)^2 - P_{\bar p}^2 = 4E^2## was that using ##A^2=(\sum\nolimits E)^2-(\sum\nolimits P)^2##, Choosing my frame as that of the proton, since this seemed to minimise the impact of my confusion associated with its trajectory, for...

Homework Statement An antiproton of energy 35 ##GeV## from a source outside the solar system interacts with a proton in the upper atmosphere traveling on a trajectory which is radial with respect to the centre of the Earth. The antiproton annihilates the proton with the final outcome that two...