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Вопрос по физике:
10. В плотно закрытой бутылке, заполненной водой,
имеется пузырек воздуха. При какой температу-
ре (°C) объем пузырька наибольший. Температур-
ным изменением объема бутылки пренебречь.-
Автор:
pooch
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Ответ:Объем пузырька воздуха зависит от объема воды в бутылке, изменяющегося с температурой. Если, например, начальная температура 10 градусов Цельсия, а конечная 20 градусов, то объем воды в конечном состоянии больше, объем пузырька меньше (изменением объема бутылки можно пренебречь) . При темпертатуре вблизи нуля Цельсия тепловое расширение воды ведет себя по другому – при повышении температуры от нуля до 4 градусов Цельсия объем воды уменьшается. В этом интервале температур объем пузырька будет расти при нагревании.
Еще 4 ненужных тебе вопроса, но это важно для поиска
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Вопрос по физике:
при напряжении на концах проводника 2 В сила тока 0,8 А. Какое напряжение на этом проводнике при силе тока 0,2 А?-
Ответов: 1
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6 лет назад
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Вопрос по русскому языку:
Пунктуационный разбор предложения:
Обмакни кисть в зеленую краску, смело проведи ею по бумаге в том месте, где на рисунке должна быть листва деревьев.-
Ответов: 2
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6 лет назад
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Вопрос по геометрии:
в окружности с центром в точке о и радиусом равным 8 см проведена касательная BC (B-точка касания) Найдите длину отрезка OC если BC=15-
Ответов: 1
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6 лет назад
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Вопрос по английскому языку:
1. Have you ever visited other countries? - Yes, I... to Italy and France.
a) was c) had been
b) have been d) would be
2. I feel really tired. We ... to the party last night and have just returned home.
a) went c) had seen
b) has gone d) was going
3. At the beginning of the film I realized that I ... it before.
a) see c) had seen
b) saw d) have seen
4. When the bus stopped in the small square, Helen ... her magazine and didn't realized at first that she had arrived at her destination.
a) read c) was reading
b) reads d) had read
5. My sister's son ... in tomorrow's race, because he is too young. They do not allow riders under sixteen.
a) won't ride c) wouldn't ride
b) shan't ride d) doesn't ride
6. A beautiful bridge ... in our city. It will be finished next year.
a) builds c) is being built
b) is built d) has been built
7. It has been raining for two hours. I hope it ... raining soon.
a) stops c) would stop
b) shall stop d) stop
8. Television has many advantages. It keeps us informed about the latest news, and also ... entertainment at home.
a) provide c) is provided
b) provides d) provided
9. On the other hand television ... for the violent behaviour of some young people, and for encouraging children to sit indoors, instead of doing sports.
a) blames c) is blamed
b) blamed d) would blame
10. Some millionaires have lots of money and ... what to do with it.
a) don't know c) won't know
b) didn't d) knows
11. How ... at college? You didn't say much about it in your last letter.
a) do you get on c) will you get on
b) are you get on d) are you getting on
12. When you ... in this city again? - In a month.
a) arrive c) have you arrived
b) arrived d) will you arrive
13. Every time that I miss the bus, it means that I ... walk to work.
a) has to c) had to
b) have to d) could
14. Every time when I missed the bus, I ... to return home late.
a) must c) can
b) had d) may
15. That was great! It was ... meal you have ever cooked.
a) good c) best
b) better d) the best
16. This exhibition is ... interesting than the previous one.
a) little c) least
b) less d) the least
17. We saw ... good film last night. The film was about the love of a girl to her cat and dog.
a) a c) -
b)the d) an
18. Everybody agrees that ... happiness is very important in the life of people.
a) - с) а
b) the d) many
19. In the past people lived in ... harmony with the environment.
a) a c) the
b) an d) -
20. When they arrived ... the station, they rushed to the platform not to miss the train.
a)to c)in
b) at d) for
Срочно
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Ответов: 2
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6 лет назад
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