IOAA 2013, Отборен тур, вертикални въпроси — Задача 12. L.
13 т.
Условие
i. What is the L.S.T. (hh:mm) at the culmination of the Sun on 53 day after the longest day in the northern hemisphere? [4 т.]
ii. The axial tilt of Mars. (integer) [2 т.]
iii. How many images of the same distant quasar appear at the Einstein Cross? [1 т.]
iv. mass of the Pluto in kg (exponent of 10 only) [2 т.]
v. Put in the right order the meteor showers according to when their peak occurs, starting from the earlier one:
- Perseids
- Orionids
- Eta Aquarids
- Quadrantids [4 т.]
Отговори
i. 0848
Printed after the question as the grid entry (“- 0848”) of the crossword answer sheet.
ii. 25
Printed after the question as the grid entry (“- 25”) of the crossword answer sheet.
iii. 4
Printed after the question as the grid entry (“- 4”) of the crossword answer sheet.
iv. 22
Printed after the question as the grid entry (“- 22”) of the crossword answer sheet.
v. 4312
Printed after the question as the grid entry (“- 4312”) of the crossword answer sheet.
Решение
Внимание: Непълно решение
The paper prints only the answer code after each question (the crossword grid entry); no worked solution is given.
i. - 0848
ii. - 25
iii. - 4
iv. - 22
v. - 4312
Оригинал в Архива: Vertical_questions.pdf