Предмет: Физика, автор: ufimenkotimoxa0510

поезд движется со скоростью 110 м/с а затем на спуске со скоростью 25 м/с Какова средняя скорость поезда на всём пути если длина спуска в два раза больше длины подъёма?

Ответы

Автор ответа: samp7802765
0

Ответ:

60км/ч.надеюсь был полезен, удачи


ufimenkotimoxa0510: пожалуйста расскажи как ты решил
Похожие вопросы
Предмет: Русский язык, автор: настя1659
Предмет: Английский язык, автор: w1597Vlad15977777
Помогите плз. Ответьте ключами
1. Children with ..... diseases should not be allowed to go to school. a) constant b) contact c) infectious d) influential
2. He has ..... bronchitis. He has suffered from it for many years. a) chronic b) durable c) fatal d) mortal
3. I have been advised to take every ..... against catching flu again this winter. a) precaution b) prediction c) premeditation d) prevention
4. After the outbreak of a mysterious illness, investigation revealed ..... of the town's water supply. a) contagion b) eruption c) infiltration d) pollution
5. Apart from the ..... cough and cold, I have been remarkably healthy all my life. a) irregular b) odd c) opportune d) timely
6. Smallpox, once responsible for millions of deaths, has been virtually ..... . a) abolished b) eradicated c) erased d) exterminated
7. Unless we take immediate precautions, we shall not be able to ..... the epidemic. a) contain b) destroy c) hold d) staunch
8. Peter can't play with the children next door because he is still in ..... with measles. a) confinement b) detention c) seclusion d) quarantine
9. The outbreak of whooping cough among children under 5 has now reached .... proportions. a) contagious b) endeniic c) epidemic d) pathological
10. My little daughter is not allowed to play with her friends next door because one of them is suffering from a ..... disease. a) contagious b) contiguous c) touching d) transmitting
11. An illness that is caused by the mind is known as ..... illness. a) an acute b) a congenital c) a familial d) a psychosomatic
12. She suffers from a morbid fear of spiders, known to doctors as ..... . a) agoraphobia b) arachnophobia c) claustrophobia d) xenophobia
Предмет: Английский язык, автор: nasta114