USAAAO 2015, Пробен кръг — Задача 8

USAAAO Practice Round 2015

Бележка

This round consists of 20 multiple-choice problems to be completed in 50 minutes. You may only use a scientific calculator and a table of constants during the test.

Условие

In a distant solar system, two planets, A and B, orbit a central main sequence star, like our sun. A day on Planet A lasts 20 Earth hours, and there are 240 such days in a year on Planet A. Likewise, a day on Planet B lasts 38 hours, and there are 220 such days in a year on Planet B. What is the synodic period with respect to these two planets, in Earth years?

a. 1.1

b. 1.2

c. 1.3

d. 1.4

e. 1.5

Отговори

Решение

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Оригинал в Архива: 2015-practice-round-exam.pdf · официални решения: 2015-practice-round-solutions.pdf