IYPT 2011, Задачи на турнира — Задача 10. Faraday heaping

24th IYPT (2011)

Заглавие в източника

Source: Problems for IYPT 2011 (iypt.org, July 17, 2010)
Selected at the IOC meeting in Gössing on July 16—17, 2010
Reference Kit for 2011 (final edition, July 29, 2011) →
Exemplary solutions for 2011 →

Условие

When a container filled with small spheres (e.g. mustard seeds) is vibrated vertically with a frequency between 1—10 Hz, so called Faraday heaping occurs. Explore this phenomenon.

Решение

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Оригинал в Архива: 2011.txt