Question
Bouchaud et al. proposed a hyperbolic differential equation to describe the stress distribution in one of these materials, whose characteristic curves can be interpreted as “force chains.” An early model of these materials that displays a pressure less than “rho g h” at the base of a cylinder is named after Janssen. Manna names a model of these materials whose sites “topple” when they hold two particles, an example of the (*) “Abelian” models of these materials that display self-organized criticality. These materials’ velocity becomes non-zero in a density-dependent jamming transition. Reynolds described these materials’ change in volume under a shear stress, known as dilitancy. These materials may have a bistable angle of repose due to stabilization by internal Coulomb friction. For 10 points, in the Brazil nut effect, convection affects what materials composed of many large particles? ■END■
Buzzes
Summary
Tournament | Edition | Exact Match? | TUH | Conv. % | Power % | Neg % | Average Buzz |
---|---|---|---|---|---|---|---|
2024 Chicago Open | 07/28/2024 | Y | 15 | 73% | 0% | 13% | 92.00 |