user-avatar
01239235216
2 năm trước
Một đoàn tàu có khôi lượng m= 5 tấn, đang ở điểm A thì hãm phanh và chuyên động vào ga với gia tốc a= - 0,5m/s và quãng đường mà xe đi được đến khi vào ga là 225m. Tính vận tốc của xe ở A, biết tại A xe có động năng là 5625kJ Ai giúp mik vớiiii
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Mark the letter A, B, c or D to indicate the sentence that is closest in meaning to each of the following questions. 36. If I was in your shoe, I would let him go. A. My suggestion is that you let him go. B. My advice is that you wear your shoes and let him go. C. I would like to be in your shoe so you could let him go. D. I was wearing your shoes and would like to let him go. 37.1 haven't seen my aunt since the Covid-19 began in 2019. A. I last saw my aunt before the beginning of the Covid-19. B. My aunt left the country after the Covid-19 so didn't see her. C. I haven't seen my aunt for so many years because of the Covid-19. D. My aunt didn't come back until the start of the Covid-19 in 2019. 38. We must take care of all living species on Earth. A. All living species on Earth are taken care of by US. B. All living species on Earth must be taken care of by US. C. All living species on Earth had been taken care of by US. D. All living species on Earth will be taken care of by US. 39. Many people came to the meeting. Some were half an hour late. A. Many people came to the meeting, some of who were half an hour late. B. Many people came to the meeting, some of whom were half an hour late. C. Many people came to the meeting, but some of them were half an hour late. D. Many people who came to the meeting some of them were half an hour late. 40. "Be careful when you cross the road, won't you?" A. He says I will be careful when I cross the road. B. He asked me if I would be careful when I crossed the road. C. He told me to cross the road only when I was careful. D. He warned me to be careful when I crossed the road.

Supply the correct verb forms: 1. I would rather (stay) _________ home tonight 2. Mr. Timmy would rather (stay) _________ home last night 3. We would rather (drink) _________ tea than coffee 4. The photographer would rather that we (stand) _________ closer together than we are standing 5. Camila would rather (cook) _________ for her family 6. She would rather you (not arrive) _________ yesterday 7. Jim would rather his friends (sleep) _________ than worked last night 8. Sam would rather Jill (be) _________ here with her tomorrow 9. I would rather my brother (not fail) _________ the driving test yesterday 10. I would rather that you (invite) _________ her to your party last Sunday 11. I would rather you (stay) __________ in a hostel than in a hotel. 12. I would rather you (find) __________ a job. 13. He would rather (face) ___________ the enemy than surrender. 14. They would rather (build) _____________ a new house than repair the old one. 15. We would rather you (go) _________ to bed now. 16. We would rather you (do) __________ the work yourself. 17. I would rather you (go) _____________ home now. 18. I’d rather (be) ____________ a vampire than a zombie. 19. I’d rather you (tell) __________ the truth. 20. Would you rather we (not go) __________ out tonight?

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team