какое количество теплоты потребуется для нагревание 20кг меди на 10° - №32460659

какое количество теплоты потребуется для нагревание 20кг меди на 10°
- Предмет:
  Физика
- Автор:
  toots
- 5 лет назад

Ответы 1

понадобится 140 джоулей
- Автор:
  boomerwbro
- 1 год назад
- 7
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Task 2 Choose the most appropriate options to fill in the gaps.
(1) that emergency call nearly midnight. “My three kids
not at home yet," - a worried male voice informed the emergency service. The man
explained that his two sons, Allan, 15, and Johnny, 13, and their twelve-year-old cousin
Jack
(3) for a bicycle ride and there was no sign of them yet. The man sounded
very nervous, as he suspected that something
(4) to the boys. No doubt, they
(5) in trouble. The rescue party headed right there.
The rescuers saw the boys soon. They
(6) down the hill. They were walking
very slowly. Two of them were helping the third boy - his leg (7) and he was
screaming with pain. Later he told us that they had been practicing extreme cycling.
Unfortunately, things like that
(8) quite often. I (8) for the
emergency center for more than five years and have seen lots of kids suffering from their extreme. They
often ignore safety rules, and get injured or worse. They cannot realize that without a very careful
preparation any extreme sport is a _ (10)activity,
1 a) receive b) received c) have received d) had received
2 a) are b) was c) were d) had been
3 a) left b) was left c) have left d) had left
4 a) happened b) had happened c) is happening d) has happened
5 a) is b) was c) were d) are
6 a) move b) are moving c) had moved d) were moving
7 a) was broken b) has been broken c) is broken d) broke
8 a) happen b) are happening c) have happened d) will happen
9 a) work b) am working c) was working d) have been working
10 a) danger b) dangerous c) dangerously d) endangered
Task 3 Choose one of these modal verbs from the box to complete the sentences.
can may should must could need
1 When I was a little girl, I _ do acrobatic tricks, but now I can't.
2 If there is not going to be any information about those passengers till tomorrow
morning, we call the police.
3 Conflicts
lead to bad relations.
4 We have respect for other people.
5 Do you know that cats see in the dark?

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