Question

Посмотрите на рисунок. Восемь граней стакана поочерёдно выкрасить в чёрный и белый цвета. При помощи воска к каждой грани на одинаковой высоте снаружи прикрепили металлические булавки. Затем, точно по центру стакана поставили свечу и зажгли её. Из приведённых ниже утверждений выберите правильные. 1)Нагрев стакана вызовет плавление воска и, как следствие, падение булавок вниз 2)Нагрев стенок стакана по 8-ми секторам окружности будет одинаков 3)Нагрев стенок стакана по высоте в пределах одной грани будет одинаков 4)первой отклеится булавка на одной из чёрных граней стакана 5)первой отклеится булавка на одной из белых граней стакана 6)второй отклеится булавка на одной из чёрных граней стакана 7) второй отклеится булавка на одной из белых граней стакана 8)первые четыре упавшие булавки отклеятся с чёрных гранях стакана 9)первые четыре упавшие булавки отклеятся с белых граней стакана 10)последней отклеится булавка на одной из чёрных граней стакана 11)последней отклеится булавка на одной из белых граней стакана 12)теплоёмкость стакана, окрашенного в чёрный цвет, выше 13)наблюдаемые эффекты связаны с различиями в степени поглощения излучения, исходящего от свечи, различными по цвету поверхностями

Answer 1

Добрый вечер! Так же решаю данную олимпиаду, так что рисунок знаю. Правильные ответы: 8,11,13

Answer 2

Statement Analysis

The statement describes a glass with eight faces that have been alternately colored black and white. Metal pins are attached to each face at the same height on the outside using wax. A candle is placed in the center of the glass and lit. The statement then presents several statements, and we need to determine which ones are correct. Let's analyze each statement one by one.

Analysis of Statements

1) Heating the glass will cause the wax to melt and the pins to fall down. 2) Heating the walls of the glass in the eight sectors of the circle will be the same. 3) Heating the walls of the glass along the height within one face will be the same. 4) The first pin to come off will be from one of the black faces. 5) The first pin to come off will be from one of the white faces. 6) The second pin to come off will be from one of the black faces. 7) The second pin to come off will be from one of the white faces. 8) The first four fallen pins will come off from the black faces. 9) The first four fallen pins will come off from the white faces. 10) The last pin to come off will be from one of the black faces. 11) The last pin to come off will be from one of the white faces. 12) The specific heat capacity of the glass colored black is higher. 13) The observed effects are related to differences in the degree of radiation absorption by surfaces of different colors.

Let's analyze each statement using the available information.

1) Heating the glass will cause the wax to melt and the pins to fall down. - This statement is likely true because heating the wax will cause it to melt, potentially leading to the pins falling down. - However, we cannot confirm this statement based on the given information.

2) Heating the walls of the glass in the eight sectors of the circle will be the same. - This statement is not supported by the given information. - The information provided does not mention heating the walls of the glass in specific sectors.

3) Heating the walls of the glass along the height within one face will be the same. - This statement is not supported by the given information. - The information provided does not mention heating the walls of the glass along the height within one face.

4) The first pin to come off will be from one of the black faces. 5) The first pin to come off will be from one of the white faces. 6) The second pin to come off will be from one of the black faces. 7) The second pin to come off will be from one of the white faces. - These statements cannot be determined based on the given information. - The information provided does not specify which pins will come off first or second.

8) The first four fallen pins will come off from the black faces. 9) The first four fallen pins will come off from the white faces. - These statements cannot be determined based on the given information. - The information provided does not specify which pins will come off first or from which faces.

10) The last pin to come off will be from one of the black faces. 11) The last pin to come off will be from one of the white faces. - These statements cannot be determined based on the given information. - The information provided does not specify which pin will come off last or from which face.

12) The specific heat capacity of the glass colored black is higher. - This statement is not supported by the given information. - The information provided does not mention anything about the specific heat capacity of the glass.

13) The observed effects are related to differences in the degree of radiation absorption by surfaces of different colors. - This statement is likely true. - Different colors can have different levels of radiation absorption, which can affect the heating and melting of the wax and the pins. - However, we cannot confirm this statement based on the given information.

Summary

Based on the given information, we can only determine that heating the glass may cause the wax to melt and potentially lead to the pins falling down. We cannot determine the specific order in which the pins will come off or from which faces. Additionally, the information does not provide any details about the specific heat capacity of the glass or the uniformity of heating in different sectors or along the height within one face. The observed effects may be related to differences in the degree of radiation absorption by surfaces of different colors, but this cannot be confirmed based on the given information.