Алгебра
Английский
Биология
География
Геометрия
История
Русский
Обществознание
Физика
Химия
Информатика
Литература
МатематикаВопрос:
9. Поезд идёт со скоростью 162 км/ч. Сколько метров он проезжает за одну секунду?
Ответ:
Переведем скорость в метры в секунду: 162 км/ч = 162 * 1000 м / 3600 с = 45 м/с. Ответ: 45 метров.
Похожие
- 2✩✩ Choose the correct alternative. 1 The salon didn't open/doesn't open because the hairdresser was in hospital. 2 She was a teacher, so she didn't work/worked in an office. 3 The family didn't eat/don't eat their meal, so the waitress took the plates away. 4 My brother won a prize at school, but he didn't like/ likes it! 5 The nurses didn't had/didn't have time to have dinner, so we made them a cake.
- 4✩✩✩ Complete the sentences with affirmative and negative past simple verbs. 1 Maya's business gave money to help boys. No, it didn't give money to help boys. It gave money to help girls. 2 Maya wrote a book in 2017. No, she wrote a book in 2017. She wrote a book in 2016. 3 Maya started a business when she was 18. No! Maya started her business at the age of 8! She started it when she was 18. 4 Olivia met the current president of the US. No, Olivia met the current president. She met a former president. 5 Olivia gave a talk when she was 13. No, Olivia gave a talk at that age. Maya gave a talk when she was 13.
- Зачем шоссейному велосипеду узкие колеса?
