Recent content by lr1

Part a I used virial theorem for kinetic energy 3mv^2 and for part b I used mass= density / volume but am confused with swept volume

A9: Supernova Remnants Consider a supernova explosion in the outer 4M⊙ of a dying star, ejected at a speed of 5000 km/s. a ◮ What is the kinetic energy of the expanding ejecta? b ◮ The ejecta are slowed by sweeping up the local interstellar gas. Assuming the density of the interstellar gas...