Question
Figure 32.36 shows a graph of the potential energy between two light nuclei as a function of the distance between them. Fusion can occur between the nuclei if the distance is
1. large so that kinetic energy is low.
2. large so that potential energy is low.
3. small so that nuclear attractive force can overcome Coulomb’s repulsion.
4. small so that nuclear attractive force cannot overcome Coulomb’s repulsion.
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