IOAA 2011, theory — Задача 1

v3

1. You will receive in your envelope an English and native language version of the questions.

2. You have 5 hours to solve 15 short (tasks 1-15) and 3 long tasks.

3. You can use only the pen given on the desk.

4. The solutions of each task should be written on the answer sheets, starting each question on a new page. Only the answer sheets will be assessed.

5. You may use the blank sheets for additional working. These work sheets will not be assessed

6. At the top of each page you should put down your code and task number.

7. If solution exceeds one page, please number the pages for each task.

8. Draw a box around your final answer.

9. Numerical results should be given with appropriate number of significant digits with units.

10. You should use SI or units commonly used in astronomy. Points will be deducted if there is a lack of units or inappropriate number of significant digits.

11. At the end of test, all sheets of papers should be put into the envelope and left on the desk.

12. In your solution please write down each step and partial result.

v3

Long theoretical questions (max 30 points each)

Трудност: неоценена.

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