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samhoon2101
2 năm trước
Một ô tô chạy trên đường thẳng với vận tốc 30m/s vượt quá tốc độ bị cảnh sát giao thông phát hiện 1s sau khi ô tô đi ngang qua cảnh sát anh cảnh sát này phóng xe đuổi theo với gia tốc không đổi bằng 3m/s² a ) hỏi sau bao lâu anh cảnh sát đuổi kịp ô tô b ) quảng đường anh đi được là bao nhiêu ?
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Các câu hỏi liên quan

1. The act of _________ should be prohibited under any circumstances. Everyone all has equal rights to vote. (FRANCHISE) 2. The boss ordered his staff to be ________ with each other in dealing with the company's end-of-year burden. (LABOR) 3. It is such a _________ story that the mom lost her child when her family immigrated from Africa into Europe. (LUCK) 4. The mayor was determined that he would do everything in his power to _________ the murder case. (MYSTERY) 5. The government stressed it was not abandoning its tough __________ policies. (INFLATE) 6. The woman detected her ________ conditions soon after she felt ill in her body. (CANCER) 7. I cast my eyes ________ and saw the geese flying in V-line. (HEAVEN) 8. ________ programs are offered to those who want to do professional training while being paid to work. (SERVICE) 9. It is inhumane to sell ________ limbs of the animals, such as rhinoceros or elephants, in the market place. (MEMBER) 10. He was regarded as a _______ winner as he beat his opponents in three straight sets. (RUN) 11. Although some hold out hope for a sea wall and land reclamation programme, it is admittedly nothing more than a mere ________ (STOP) 12. A(n) ________ is implanted in the body to prop up the heart. (MAKE) 13. She is ________ gorgeous in that gown. (DIE) 14. His behavior at the party was _________, which went beyond everyone's expectations. (ERR) 15. The advent of computers was one of the _________ milestones in the mankind's history. (NOTE) 16. His condition was so serious _________ as he had to stay in hospital for a month. (MUCH) 17. Pending the _________ of KFC, the manager had to catch up on a huge number of backlogs. (TAKE) 18. It is __________ to be waken up by the noisy music from the neighbor's house. (IRK) 19. Like many other __________ of my age, I dread to use hi-tech gears. (TECHNICAL)

III.Chuyển các câu sau sang bị động: 1. My father waters this flower every morning 2. John invited Flona to his birthday party last night. 3. Her mother is preparing the dinner in the kitchen. 4. We should clean our teeth twice a day. 5. Our teachers have explained the English grammar. 6. Some drunk drivers caused the accident in this city. 7. Tom will visit his parents next month. 8. The manager did't phone the secretary this morning. 9. Did Mary buy this beautiful dress? 10. I won't hang these old pictures in the living moon. 11. The German didn't build this factory during the Second World War. 12. The Greens are going to paint house and these can for Christmas Day. 13. Ann had fed the cats before she went to the cinema. 14. The students have discussed the pollution problems since last week. 15. Have the thieves stolen the most valuable painting in the national museum.

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