IOM 2018, Блиц, английски — Задача 27
OLYMPIAD OF METROPOLISES. Moscow, September 3 · 3 септември 2018 г.
Условие
You lie on the beach. The sea is quiet and you can see the sunset. Moreover, you can observe this phenomenon twice: the first time, when you lie, and the second time, when you stand up. The time that elapsed between two sunsets was 11.1 s, and you are 1.7 m tall. Using this time and your height, calculate the radius of the Earth. Give the answer in millions of meters accurate to the first decimal.
The answer should be given in the SI units unless otherwise stated. If the numerical result turns out to be an integer, it should be given as the answer. Otherwise round the result to the first decimal. .
Отговори
5.2 millions of m
Printed answer interval [5.15; 5.25].
Решение
Answer: [5.15; 5.25]
Оригинал в Архива: blitz.pdf · официални решения: blitz-answers.pdf