IYPT 1991, Задачи на турнира — Задача 11. Gold cube
Problems for the 4th International Young Physicists’ Tournament
Critical edition
Olympiets Youth Center, Moscow, Soviet Union; July 22‒28, 1991 [1]
Critical edition: translated, restored, and commented text [2]
FINAL DRAFT. — Please do not re-publish. Suggestions and criticism welcome
Translated, edited and commented by Ilya Martchenko. The original edition’s historical notes, sources and acknowledgments are retained with problem 1.
Епиграф
Is this black currant?
No, it is red currant.
But why is it white?
Because it is still green. [3]
Условие
A cubic planet of pure gold evolves around the Sun and keeps one of its facets turned towards it. Estimate the difference of temperatures of the planet facets.
Решение
Внимание: Непълно решение
В архива няма официално решение на тази задача.
Оригинал в Архива: 1991.pdf