Bonus

An explanation of this effect is that if a certain system’s center of mass is not optimally low, then smaller particles tend to move downward. For 10 points each:
[10m] Name this effect in which shaking a container of muesli causes larger particles to rise to the top. It is sometimes named after a food.
ANSWER: granular convection [or Brazil nut effect; prompt on BNE; prompt on convection]
[10h] Granular convection can be explained by using a model named for this physicist to calculate the transverse speed distribution. In granular materials, high values of friction cause pressure to plateau at high depth due to a law that this physicist first observed in corn silos.
ANSWER: H. A. Janssen [accept Janssen model or Janssen’s law]
[10e] Janssen derived his model by assuming that this value was constant. The buoyant force is the product of this quantity, displaced volume, and little g.
ANSWER: mass density [prompt on rho]
<Physics>
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Conversion

TeamOpponentPart 1Part 2Part 3TotalParts
Arizona StateWaterloo B001010E
Columbia AWUSTL B1001020ME
FloridaIllinois B1001020ME
Georgia StateJohns Hopkins0000
Georgia TechToronto A100010M
HarvardMaryland001010E
Illinois AVirginia100010M
Iowa StateIndiana100010M
MITWUSTL A1001020ME
MinnesotaMichigan001010E
NorthwesternStanford001010E
Ohio StateUCF0000
OttawaCornell A1001020ME
Penn StateNYU001010E
RITToronto C1001020ME
TexasNorth Carolina B001010E
Toronto BWinona State1001020ME
VanderbiltLSE0000
Waterloo ANorth Carolina A1001020ME
YaleCornell B0000

Summary

TournamentExact Match?HeardPPBEasy %Medium %Hard %
2025 ACF NationalsYes2011.5065%50%0%