IOAA 2013, Отборен тур, вертикални въпроси — Задача 2. B.
13 т.
Условие
i. The Trifid Nebula is M__. [2 т.]
ii. The temperature at an exoplanet’s atmosphere is . The mean speed of the nitrogen molecules () in the same temperature is . The mean speed (km/s) that the nitrogen molecules acquire when the temperature becomes four times greater is__. [1 т.]
iii. The emission spectral line is the result of the transition of an electron between energy levels __ to __. [2 т.]
iv. The morphological class of this galaxy.
- SBa
- SBb
- SBc
- S0
- SB0
- Irr
- Sa
- Sb
- Sc [1 т.]
v. Io, Europa and Ganymede revolve in a __:__:__ resonance. [3 т.]
vi. Vega’s B-V Colour Index. [1 т.]
vii. Find the height of the mountain (metres). and . EFCD is a square and FH is vertical to CH. [3 т.]
Отговори
i. 20
Printed after the question as the grid entry (“- 20”) of the crossword answer sheet.
ii. 1
Printed after the question as the grid entry (“- 1”) of the crossword answer sheet.
iii. 32
Printed after the question as the grid entry (“- 32”) of the crossword answer sheet.
iv. 3
Printed after the question as the grid entry (“- 3”) of the crossword answer sheet.
v. 124
Printed after the question as the grid entry (“- 124”) of the crossword answer sheet.
vi. 0
Printed after the question as the grid entry (“- 0”) of the crossword answer sheet.
vii. 320
Printed after the question as the grid entry (“- 320”) 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. - 20
ii. - 1
iii. - 32
iv. - 3
v. - 124
vi. - 0
vii. - 320
Оригинал в Архива: Vertical_questions.pdf