Homework 9: Due November 7

1. Read Mystery 5
2. How did Super-Kamiokande show that our understanding of the way supernovae work is probably correct?
3. What is special about iron with respect to nuclear fusion?
4. How will the Sun die---as a supernova or as a planetary nebula? How do you know?
5. How does most of the energy leave a supernova: as light, as neutrinos, or as kinetic energy of the outflowing gas?