IYPT 2014, Задачи на турнира — Задача 17. Chocolate hysteresis
27th IYPT (2014)
Заглавие в източника
Source: Problems for the 27th IYPT 2014 (iypt.org, Aug. 1, 2013)
Selection proposed by the Committee for Problem Selection on July 12; approved and edited at the IOC meeting in National Dong Hwa University on Aug. 1; released on Aug. 1, 2013
Reference Kit for 2014 (first day draft, Aug. 1, 2013) →
Exemplary solutions for 2014 →
When throwing pebbles into water, watch the ripples;
Otherwise throwing the pebbles becomes a futile pastime.
Kozma Prutkov
Условие
Chocolate appears to be a solid material at room temperature but melts when heated to around body temperature. When cooled down again, it often stays melted even at room temperature. Investigate the temperature range over which chocolate can exist in both melted and ‘solid’ states and its dependence on relevant parameters.
Решение
Внимание: Непълно решение
В архива няма официално решение на тази задача.
Оригинал в Архива: 2014.txt