Hạt gồm có ............ và các chất dinh dưỡng dự trữ. Cảm mơn trước các bạn nha ^w^

Mn ơi giúp mih vơi mih đag rất gấp ah 🤧🤧🤧?????????????????????.???????????????????????????

Tại mặt đất vật được ném thẳng đứng với vận tốc 40 m\s .lấy g=10 m\s bình phương. a tính độ cao. b tính vận tốc khi vật cách mặt đất 20m

Bài 5. Viết lại câu với “” if/unless” sao cho nghĩa của câu không thay đổi. 1. I can’t finish this task you don’t give me a hand. -> _____________________________________________________________________ 2. You will run out of money if you don’t stop wasting it. -> _____________________________________________________________________ 3. Don’t call me unless it is an emergency. -> _____________________________________________________________________ 4. James will not pass the test unless he studies harder. -> ____________________________________________________________________ 5. If Jane finishes her work before 6 pm, she will dine out with her friends. -> _____________________________________________________________________ 6. My brother won’t go travelling this summer if he doesn’t find a companion. -> _____________________________________________________________________ 7. It is not easy to do these exercises unless you listen attentively to the teacher. ->______________________________________________________________________ 8. If Jim doesn’t submit his essay before Tuesday, he will be punished by the teacher. -> _____________________________________________________________________ giup mik vs

Cách giải tự luận của (x+1)^5 = e^x

Bài 4. Dựa vào từ cho sẵn, viết câu hoàn chỉnh. 1. If/people/ not/ stop/ dumping/ waste/ into/ rivers/,/pollution/ increase/. ________________________________________________________________________ 2. If/ polar/ ice caps/ melt/ ,/huge landmasses/ be/ under/ water. ________________________________________________________________________ 3. If the air/ in/ city/ be/polluted/ ,it/can/ cause/ people’s/ respiratory/ problems. ________________________________________________________________________ 4. If/smog/ be/ frequently/ formed/ in/ city/,/it/ cause/ difficulty/ in/ breathing/ headache/ even/ lung cancer. ________________________________________________________________________ 5. If/ carbon monoxide/ concentrate/ in/ great/ amounts/, /it/ be/ harmful/. ________________________________________________________________________ 6. The climate/ change/ if/ more trees/ be/ cut/ down/ for/ hardwood/. ________________________________________________________________________ 7. If/ we/ not/ control/ pollution/ soon/,/it/ be/ too/ late/. ________________________________________________________________________ 8. If/we/ not/ protect/ frontier/,/we/ suffer/ many/ from/ natural/ disasters. ____________________________________________________________________ giup mik vs mik can gap

Bài 13: Viết lại câu, sử dụng cấu trúc “used to”. 1. My mother worked at a restaurant 3 years ago but now she doesn’t. ______________________________________________________________ 2. He was the president of Student Union but now he isn’t. ______________________________________________________________ 3. There were many tree-lined streets in my hometown but now there is none of them. ______________________________________________________________ 4. My husband didn’t do housework but now he does. ______________________________________________________________ 5. Children didn’t play with high-tech devices at an early age but now they do. ______________________________________________________________ 6. The students didn’t go to school by public transportation but now they do. ______________________________________________________________ 7. My city was a tourist destination but now it isn’t. ______________________________________________________________ 8. Traffic jam didn’t happen when I was small but it happens now. ______________________________________________________________ Bài 14: Khoanh tròn vào đáp án đúng. Happy memories of my childhood. I always count myself lucky that I spent my childhood with my parents in the countryside. When I was small, our family (1)________ in a small bungalow near a river. My brother and I used to (2)________ swimming after school until my mother told us to come back. Our school was not far (3)________our house, so we walked to school every day. There didn’t (4)________as many traffic (5)________there is today, so my parents (6)________ worry much about traffic accident. In the past, there (7)________ use to be many forms of entertainment such as TV or computer, so our family spent many hours with each other. Sometimes, my brother and I (8)________ taken to our grandparents’ house to visit them. Those memories are unforgettable. 1. A. use to lived B. used to lived C. use to live D. used to live 2. A. went B. go C. goes D. gone 3. A. from B. in C. at D. to 4. A. use to be B. use to be C. use to D. be 5. A. like B. than C. as D. and 6. A. used to B. didn’t used to C. did D. didn’t 7. A. were B. weren’t C. did D. didn’t 8. A. were B. weren’t C.did D. didn’t Bài 15: Đọc bài đọc dưới đây và trả lời câu hỏi. Have you ever seen someone’s anger when you’re stuck in the traffic jam in rush hours? Have you witnessed any driver acting aggressively toward other people on the road? If yes, you have probably witnessed a case of road rage. Road rage is aggressive or angry behavior of a driver in a road vehicle. Road rage includes rude gestures, verbal insults, physical threats or even dangerous driving methods. Those behaviors intend to release stress and frustration of the angry drivers. Road rage can cause noisy arguments between drivers and more seriously, physical attacks. That may result on severe injuries or even death. There are many reasons of road rage, one of them is traffic jam. With the increased number of private vehicles in the streets, congestion is getting worse and worse. People are easy to get angry if they are stuck in the traffic jam, so road rage is more likely to happen. People are recommended to calm themselves in the traffic jam by listening to radio or music, so they can prevent road rage. 1. What is road rage? ______________________________________________________________ 2. What does road rage include? ______________________________________________________________ 3. What can road rage cause? ______________________________________________________________ 4. What is one of the causes of road rage? ______________________________________________________________ 5. What are people recommended to do to prevent road rage? ______________________________________________________________

Một cần cẩu có công suất 6 kW, được dùng để nâng một vật có trọng lượng 4500 N lên độ cao 12 m. Tính thời gian cần cẩu dùng để nâng vật.

Người ta muốn truyền một công suất điện 60000W từ nhà máy điện đến khu dân cư. HĐT giữa 2 đầu dây tải là 20000V, dây tải có điện trở 60Ω. a) Tính công suất hao phí do tỏa nhiệt trên đường dây. b) Nếu muốn giảm công suất hao phí trên đường dây xuống 4 lần thì người ta phải dùng MBT để tăng HĐT giữa 2 đầu dây tải điện lên là bao nhiêu?

175x(-32)-(-32)x74-(-32) Giải giúp mnk bái toán này cảm ơn