Một thang máy có khối lượng 700kg được kéo chuyển động đều cao với vận tốc 3m/s.Tính công của lực kéo trong thời gian 10 giây. Giải giúp mik vs ạ mik cảm ơn trc.

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III. Language focus (Unit 8 – 9) + Relative clause: ( who , which , that) + Adverb clause of concession. + Defining and non-defining clause. 1/ Do as directed 1. This watch is a gift. The gift was given to me by my aunt on my 14th birthday. ( which) 2. My friend Tom can compose songs . Tom sings western folk songs very well (Who) 3. I bought a picture . It was very valuable. ( which ) 4. I saw the girl . She helped us last week. ( who ) 5. The visitors can see a lot of beautiful parks . They come to London. ( Who ) 6. Where are the eggs . They are in the fridge. ( which ) 7. The car is very new. I have just bought it . ( which ) 8. The boy was very poor . I helped him yesterday. ( whom) 9. I met the man ......................know you . 10. Your mother , .................... answered the phone , told me you were away. 11. They are at Heathrow Airport, .....................is one of the biggest airport in the world 12. It’s in Hue...........................I was born. 13. My class has 20 students , all of .................................are girls . 14. We walked down the steps...................led to the basement . 15. Frank, ......................was talking to Jim, used to teach me English. 16. He ‘s got an English name . He is in fact American. ( although) 17. I decided to accept the job. The salary was low.  In spite of ............................................................. 18. Although he has a pleasant manner. He is a bad doctor. Despite ..................................................... 19. He often tells lies . Many people believe him . ( Though ) ........................................................................................................................................She kept on studying . It was noisy. ( Even though) ........................................................................................................................................ IV. Language focus ( Unit 10) + Conditional sentence: Type 2 + Modal verb: may, might Exercises: 1. If we met an alien, we …………………. Him to my home and talk( invite) 2. If I was you, I ……………………… that.(not ,do) 3. If I …………enough money, I would buy a new computer.(have) 4. If Mr Tuan had a car, he ………………….. to work(drive) 5. It ………… a book or it …………a game (be)