Packet L: Bonus 13
These objects drive the L/T transition in brown dwarfs, since they sink below the photosphere at temperatures below 1700 Kelvin. For 10 points each:
[10m] Name these objects whose formation in supersaturated environments is described by Köhler (“KOOL-er”) theory. On Earth, silver iodide can be used to “seed” these objects.
ANSWER: clouds [accept cloud seeding]
[10e] Köhler theory predicts that clouds form when the relative form of this quantity is greater than 100 percent. This quantity is the concentration of water vapor in air.
ANSWER: humidity [accept relative humidity]
[10h] When air is supersaturated, clouds can form via the heterogeneous form of this process, in which water vapor condenses onto CCNs like salt crystals and aerosols.
ANSWER: nucleation [accept heterogeneous nucleation]
<Editors, Other Science> | Packet L
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 104 | 16.63 | 95% | 61% | 11% |
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| George Mason A | Maryland A | 10 | 10 | 0 | 20 | ME |
| Lehigh A | NYU B | 0 | 10 | 0 | 10 | E |
| Lehigh B | Princeton | 0 | 10 | 0 | 10 | E |
| Maryland C | Maryland B | 10 | 10 | 0 | 20 | ME |
| NYU A | Rutgers A | 10 | 10 | 0 | 20 | ME |
| NYU C | George Mason C | 0 | 10 | 0 | 10 | E |
| Penn | Johns Hopkins | 10 | 10 | 0 | 20 | ME |
| Rowan | Rutgers C | 10 | 10 | 0 | 20 | ME |
| Rutgers B | Columbia A | 0 | 10 | 0 | 10 | E |
| Rutgers D | Stony Brook | 10 | 10 | 10 | 30 | MEH |
| Vassar A | George Mason B | 10 | 10 | 0 | 20 | ME |
| Vassar B | Columbia B | 0 | 10 | 0 | 10 | E |
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| Southern California | Main | ✓ | 7 | 17.14 | 100% | 71% | 0% |
| Eastern Canada (2) | Main | ✓ | 9 | 14.44 | 89% | 56% | 0% |
| Great Lakes | Main | ✓ | 11 | 17.27 | 91% | 64% | 18% |
| Lower Mid-Atlantic | Main | ✓ | 6 | 15.00 | 83% | 67% | 0% |
| Upper Mid-Atlantic | Main | ✓ | 12 | 16.67 | 100% | 58% | 8% |
| Midwest | Main | ✓ | 8 | 21.25 | 100% | 63% | 50% |
| Northeast | Main | ✓ | 12 | 17.50 | 92% | 67% | 17% |
| Pacific | Main | ✓ | 9 | 11.11 | 100% | 11% | 0% |
| Southeast | Main | ✓ | 12 | 17.50 | 100% | 75% | 0% |
| Upstate NY | Main | ✓ | 5 | 18.00 | 80% | 100% | 0% |
| UK (North) | UK | ✓ | 5 | 18.00 | 100% | 60% | 20% |
| UK (South) | UK | ✓ | 8 | 16.25 | 100% | 50% | 13% |