In the following list of activities classify them with respect to which interaction would help explain the situation. Use the interactions of gravity, electromagnetic, weak nuclear, or strong nuclear.
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1. an apple falling from a tree |
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2. atomic bomb |
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3. magnetism |
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4. why rocks fall down and not up |
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5. listening to the radio |
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6. falling down from a bike |
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7. Solar system motion |
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8. radioactive decay of particles |
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9. a balloon sticking to a wall after rubbing the balloon |
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10. the Moon revolves around the Earth |
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11. the motion of a comet |
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12. weight |
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13. friction |
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14. protons and neutrons in a nucleus |
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15. tidal action of the oceans |
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16. x-rays |
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17. television |
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18. microwaves |
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19. shape of galaxies |
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20. light |