USAAAO 2015, Пробен кръг — Задача 2

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

Given a star of 70 solar masses and 20 solar radii, what type of star is this?

a. Main Sequence

b. Giant

c. Dwarf

d. Neutron Star

e. Supergiant

Отговори

Решение

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