IOAA 2013, Отборен тур, вертикални въпроси — Задача 17. Q.
13 т.
Условие
i. in radians [3 т.]
ii. The first photo from space was taken from a V-_. [1 т.]
iii, A mission is sent to Mars by following a Hohmann-Vetchinkin orbit. How many days is the minimum time interval that the mission’s members will have to stay on Mars before they find the first opportunity to come back to Earth by following once more a Hohmann-Vetchinkin orbit? Consider that the orbits of Earth and Mars are circular and coplanar and that the distance of Mars from the Sun is . (one decimal) [4 т.]
iv. Mass of the supermassive black hole at the galactic centre in kg (exponent of 10 only) [2 т.]
v. distance of globular cluster M68 (in kpc) given its parallax = 97.2 μarcsec [3 т.]
Отговори
i. 514
Printed after the question as the grid entry (“- 514”) of the crossword answer sheet.
ii. 2
Printed after the question as the grid entry (“- 2”) of the crossword answer sheet.
iii, 4586
Printed after the question as the grid entry (“- 4586”) of the crossword answer sheet.
iv. 37
Printed after the question as the grid entry (“- 37”) of the crossword answer sheet.
v. 103
Printed after the question as the grid entry (“- 103”) 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. - 514
ii. - 2
iii, - 4586
iv. - 37
v. - 103
Оригинал в Архива: Vertical_questions.pdf