Определите силу ,под действием которого тело массой 100г движется с ускорением 5м/с2 - №30127803

Определите силу ,под действием которого тело массой 100г движется с ускорением 5м/с2
- Предмет:
  Математика
- Автор:
  bauer
- 6 лет назад

Ответы 1

по закону Ньютона
f=ma
0.1 * 5 = 0.5 N
- Автор:
  jamiedyer
- 6 лет назад
- 0
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Вариант 1

1.Раскройте скобки, употребляя глаголы в Past Simple или Past Continuous.

1. When I (to come) home, my little sister (to sleep). 2. When Nick (to come) home, his brother (to play) with his toys. 3. When mother (to come) home, I (to do) my homework. 4. When father (to come) home, Pete (to sleep). 5. When mother (to come) home, the children (to play) on the carpet. 6. When I (to get) up, my mother and father (to drink) tea. 7. When I (to come) to my friend's place, he (to watch) TV. 8. When I (to see) my friends, they (to play) football. 9. When I (to open) the door, the cat (to sit) on the table. 10. When Kate (to open) the door, the children (to dance) round the fir-tree. 11. When Tom (to cross) the street, he (to fall). 12. When I (to go) to school, I (to meet) my friend. 13. When we (to go) to the cinema, we (to meet) grandmother. 14. When grandmother (to go) home, she (to see) many children in the yard. 15. When Henry (to walk) about in the forest, he (to find) a bear cub. 16. They (to drink) tea when I (to come) home. 17. He (to walk) along the river when a boat (to pass). 18. The old man (to think) about his plan when he (to fall) asleep. 19. We (to listen) to an interesting lecture yesterday. 20. When I (to enter) the classroom, the teacher (to write) words on the blackboard and the pupils (to copy) them into their exercise-books.

2. Поставьте C (Correct) напротив предложений, которые составлены верно, и W (Wrong) – напротив предложений, которые составлены неверно.

1.I fell asleep when I was watch television.

2.It was raining at noon.

3.While I working in the garden, I hurt my back.

4.You were watching television when I phoned you?

At 9.30 she was reading a newspaper.

3. Ask 4 types of questions.

We rested yesterday.

Вариант 2

1. Раскройте скобки, употребляя глаголы в Past Simple или Past Continuous.

1. When I (to ring) up my friend, he (to sleep). 2. When grandfather (to watch) TV, he (to fall) asleep. 3. When my friend (to come) to see me, I (to do) my homework. 4. When I (to go) to the stadium, I (to meet) Kate and Ann. 5. When Nick (to ring) me up yesterday, I (to help) mother. 6. When the children (to walk) through the wood, they (to see) a fox. 7. When I (to come) home, my sister (to wash) the floor. 8. When Mike (to play) in the yard, he (to find) a ball. 9. When I (to draw) yesterday, I (to break) two pencils. 10. When I (to meet) Tom, he (to go) to the shop. 11. When I (to look) out of the window, the children (to play) hide-and-seek. 12. I (to go) to the theatre yesterday. 13. At seven o'clock yesterday I (to go) to the theatre. 14. What you (to do) at 5 o'clock yesterday? -I (to play) the piano. 15. When I (to come) to school, the children (to stand) 16. He (to get) up at seven o'clock yesterday. 17. Father (to come) home at six o'clock yesterday. 18. I (to read) a book at six o'clock yesterday. 19. She (to fall) asleep at eleven o'clock yesterday. 20. Mother (to drink) tea at eleven o'clock yesterday.

2. Поставьте C (Correct) напротив предложений, которые составлены верно, и W (Wrong) – напротив предложений, которые составлены неверно.

1. At 9.30 she was reading a newspaper

2.Did you saw a book?

3.While I working in the garden, I hurt my back.

4.Children was playing on the sport – ground.

3. Ask 4 types of questions.

We were playing at 5 o clock yesterday.
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