USAAAO 2015, I кръг — Задача 10

USAAAO First Round 2015

Условие

A binary star system has two components: Star A and Star B. Star A has a mass of 5 solar masses, and Star B has the same mass as our Sun. Assuming circular orbits, how many times closer to the center of mass of the system is Star A than Star B?
a. 1
b. 3
c. 5
d. 10
e. 25

Отговори

Решение

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