Viên đạn khối lượng 10g đang bay với vận tốc 600m/s thì gặp một bức tường. Đạn xuyên qua tường dày 20cm. Sau khi xuyên qua tường vận tốc của đạn còn 200m/s. Độ lớn Lực cản trung bình của tường tác dụng lên đạn bằng A. + 84000N. B. + 83000N. C. 800000N. D. 8000N. giúp mình với, mình cần gấp

cần siu gấp luôn các bn ạ giúp tui với

Viết về bộ phim người nhện bằng tiếng anh (khoảng 80-100 từ nha) Dàn ý nè: what kind of film is it? How many character in it? who the main actors and actresses? What happens in the film? What are the messages of the film?

Ghi rõ ra cách làm ra cho mình nha

Tìm GTNN của biểu thức C=|x-2|+|2x-3|+|3x-4|

Reading and choose the best answer. On Sunday, Lan and her mother often go to the store _____1______ her house to do some shopping. The store is small but every thing is available there. Lan's mother doesn't have _____2_____ time for shopping so she usually buy food for several days. She buys five kilos of rice, two loaves of bread, a big bottle of cooking oil, a dozen eggs, some cans of pork and fish, a kilos of beef and some oranges or apples. Sometimes she buys _____3_______ kilos of sugar, a bar of soap, a _____4_______ of toothpaste and a bottle of shampoo. She doesn't forget to buy Lan a bos of chocolate or a packet of biscuits. She buys many things so Lan must _____5______ her bring them home. 1). A). next B). at C). on D). near 2). A). some B). much C). a D). the 3). A). the B). some C). a D). an 4). A). can B). tubes C). bottle D). tube 5). A). help B). to help C). helps D). helping

Make question. 1. …………………………………………………………………………………………………………………………………….……….? My mother often walks to work. 2. …………………………………………………….……………………………………………………….………………………………? I’d like a glass of lemon juice. 3. ………………………………………………….………………………………………………………………………………………….? I have English three times a week. 4. ……………………………………………….…………………………………………………………………………………………….? I am waiting for my uncle at the station. 5. …………………………………………………..……………………………………………………….…………………………………? Yes. I have one brother and two sisters. 6. ………………………………………………………………………………………………………………………………………………? My sister helps my mother with the housework

Giải giúp emm câu C câu D với :((((( huhu gấp hứa vote 5 sap

Nêu nhận xét của em về hai câu tục ngữ '' Người ta là hoa đất '', '' Người sống đống vàng ''?

Rewrite the following sentences using the given words so that it has similar meaning 1. Tom is the younger of the two brothers? -> Tom has …………………………………………………………………………. 2. Mexico city is bigger than New York City. -> New York city is not as …………………………………………………………. 3. Why don’t we go out for a change? -> ……………………………………………………………………………… 4. This book is old. -> This ………………………………………………………………… 5. How much does this bar of soap cost? -> What is ……………………………………………………….. 6. Nga walks to school every morning. -> Nga goes …………………………………………………