тележка масса m, движущаяся со скоростью v, сталкиваются с неподвижной тележкой такой же - №4212912

тележка масса m, движущаяся со скоростью v, сталкиваются с неподвижной тележкой такой же массой и сцепляется с ней. Чему равен импульс обеих тележек сразу после сцепки?
- Предмет:
  Физика
- Автор:
  nietoow3u
- 5 лет назад

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THE 7-TH FORM

PROGRESS CHECK 2

PART 1: USE OF ENGLISH (GRAMMAR/VOCABULARY)

Task 1. Complete each sentence with one of the words
or word combinations below (10 points).

official language, different languages, first, means
of communication, only, British and American English, study, vocabulary,
foreign languages, speak

English has become a 1) … within some
countries where different groups of people speak 2) … . You must work hard to
learn your 3) … foreign language. Some people can 4) … more than one
language. We must 5) … foreign language
at school. There are some differences between 6) … . English is the 7) … in
Australia. Most 8) … in the modern computer science is in English. English is
the 9) … solution to the communicate problems. If a person doesn’t know 10) …
he can’t hope to know all the news in his field.

Task 2. The word in capitals in the right column can
be used to form a word that fits suitably in the blank space of the following
sentences. Fill each blank in this way (5 points).

English is the only solution to … summit
meetings.

COMMUNICATE

I often take part in different …

COMPETE

People who live in Sweden don’t speak …

RUSSIA

I like … of the New Year.

CELEBRATE

The … has already begun.

DISCUSS

Task 3. These sentences are the answers to the
questions. Write down the questions. Begin your questions with “How” (5
points).

He writes 10 letters every day.It takes me 30 minutes to have dinner.I would like to have 4 lessons every day.I am 14 years old.The Thames is 334 kilometres long.

Task 4. Read a sentence and write another sentence
with the same meaning. Use the Passive Voice (5 points).

We clean our room every morning.My mother cooked dinner for my birthday.I will win the competition next year.Our teacher asked many questions last lesson.John R. R. Tolkien wrote his famous novel “The
Lord of the Rings” in 1965.

Task 4. Read a sentence and write another sentence
with the same meaning. Use the Passive Voice (5 points).

We clean our room every morning.My mother cooked dinner for my birthday.I will win the competition next year.Our teacher asked many questions last lesson.John R. R. Tolkien wrote his famous novel “The
Lord of the Rings” in 1965.
- Предмет:
  Английский язык
- Автор:
  joaquin566
- 5 лет назад
- Ответов:
  
  3
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Что для мцыри значит счастье?
- Предмет:
  Литература
- Автор:
  rafaelbishop
- 5 лет назад
- Ответов:
  
  0
- Смотреть
у коли 2 пары брюк и 3 рубашки.сколько разных вариантов одежды он смоет себе составить?
я правильно думаю 2+3=5 всего
5-3=2 варианта
- Предмет:
  Математика
- Автор:
  monkeyyjzs
- 5 лет назад
- Ответов:
  
  2
- Смотреть
СРОЧНО НУЖНО СОЧИНЕНИЕ НА ТЕМУ- ЗИМНЯЯ СКАЗКА ЧТОБ ГОВОРИЛОСЬ ПРО МЕДВЕДЯ , СНЕГОВИКА, ПАДАЮЩИЕ СНЕЖИНКИ И НАРЯЖЕННУЮ ЁЛКУ.
- Предмет:
  Русский язык
- Автор:
  katherine
- 5 лет назад
- Ответов:
  
  2
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1 hour 1 day 100 years