| Front | What are the fuel rods made of? |
| Back | Mostly U-238 that doesn't undergo fission and 2-3% of U-235. |
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| Front | What are the rules of the feynman diagrams? |
| Back | Incoming particles start at the bottom. Baryons and leptons can't cross to the other side and charge on both sides must be equal. |
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| Front | What are nodes? |
| Back | Where the amplitude of vibrations are 0. |
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