Ai giỏi vật lý giúp em 1 câu với ạ

1.Vì sao đồng bằng sông Cửu Long lại xây dựng hệ thống sông kênh rạch chằng chịt 2.Vai trò của biển đối với phát triển kinh tế và an ninh nước ta Mong mn giúp đỡ mk vs ạk MK đag cần gấp

C. Chứng minh rằng: sin^2 A+sin^2 B– sin^2 C = 2sin A.sin B.cos C. Giúp em với ạ em cảm ơn

giải giùm em luôn ! Em cần gấp vì sắp đi ngủ rồi ạ!

Động cơ lập trên xe máy Sony hàng máy Yamaha có đường kính trong xilanh 52,4mm , hành trình pittong là 57,9mm. Hỏi thể tích công tác của động cơ là bao nhiêu xăng ti mét khối . Giúp mik mau vs ạ😑

Mn giúp e với ạ em cần gấp trong hn ạ

Giải bất phương trình : căn -x+3x+4 <= x+1

1.when's teachers day ? 2 what time do you go to school ? 3 what animal do you want to see ? 4 would you like to go to the zoo ? 5 what are you going to do this summer ? 6 how much is your blouse ? 7 what your phone number ? 8 let's go to the book shop ? 9 when's children 's day ? 10 what does your mother look like ? 11 what your favourite food ? 12 would you like to go for a walk ? 13 where are you going this summer ? 14 what animal do you want to see ? 15 let's go to the zoo ? 16 what your favourite drink ? 17 what time do you get up ? 18 what does your father do ? 19 what are you going to do in nha trang ? 20 would you like to go for a picnic ? 21 what animal do you want to see ? 22 let's go to the supermarket ? 23 would you like to go shopping ? 24 what time do you get up ? 25 what does your brother look like ? 26 how much are your shoes ? 27 would you like some milk mong các bạn làm nhanh cho mình

Vị trí phạm vi vùng biển Việt Nam

The two children have been in London. They were surprised at crowds everywhere. They decided to travel on the tube railway. They found that they had to be quick and get on One day they went to Hype Park and walked along on the grass to Kensington Gardens in bright autumn sunshine. This was different from the crowded streets, and Mary said that it was like being back home. The leaves of the great trees were turning red, brown and yellow, birds were flying about, there were lots of flowers and ducks swimming about on the Round Pond. Only the noise from the street in the distance reminded them of the town. the train or it would go off without them. 1. What remind them about the town?