user-avatar
nam0969759332
2 năm trước
1) Một xe khối lượng 2 tấn,khởi hành sau 10s đạt được vận tốc 36km/h,chuyển động trên đường ngang có hệ số ma sát k=0,05.Lấy g=10m/s2 a) tính lực kéo của động cơ xe b) tính công động cơ Có gì vẽ hình giúp mình nha mai mình kt 1 tiết mà mình k bik làm
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

IV. Read the passage carefully :(2,5P) In the first year of lower secondary school, I had some difficulties in learning English. My pronunciation of English words was really bad and my English grammar was worse. I did not know how to improve them. One afternoon after the lesson, my teacher of English told me to wait for her outside the classroom. She took me to the school library and showed cassettes of pronunciation drills kept in a glass bookcase. She also told me how to use an English-English dictionary to improve my English grammar. “ Now, I think you know what you should do” she said. I did not know that only one year later I would win the first prize in the English Speaking Contest held for secondary school students in my hometown. Answer true (T) or false (F): ...... 1. His pronunciation of English words was bad. ...... 2. There was not any difficulties in his learning English. ...... 3. His teacher told him how to use an English-Vietnamese dictionary. ...... 4. His teacher took him to the library. ...... 5. Later, he knew what he should do to improve his English.

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