23. one point, from Lecture 23, a group question, short answers.

(a) .2 Nuclear Fission. What are the physics (.1) and historical (.1) connections between nuclear fission and the equation E=mc²?

(b) .2 Nuclear Fusion. Give two examples of nuclear fusion which have a clear effect on your daily life, explaining those effects. (.2)

(c) .6 Fusion and Fission Energy Diagrams. In the energy diagrams for nuclear fusion and nuclear fission, what are mothers and daughters (.1), hills (.1), and tunneling (.1)? Why is fusion hard to get started? (.1) How are critical mass and chain reaction in fission related to each other? (.2)

Revised October 19, 1997.