Một nguồn âm đang phát ra âm. Nếu biên độ của nguồn âm tăng lên thì ta nghe được độ to của âm thay đổi như thế nào?

Bài toán đố nha mk cảm ơn trước

Ca dao than thân yêu thương để lại cho em ấn tượng gì

Giải phương trình sau : Căn x+3=x-3

Làm hộ mình câu 16 17 ra tự luận với :((

Since the Channel Tunnel opened, getting to France has never been (0.)_____easy. The fastest train arrives (1.) _____Calais thirty-five minutes after (2.)_____departure from England, and from there travelers can easily (3.) _____some of the (4.) _____picturesque towns in France (5.) _____Le Touquest and Honfleur. The former is a pleasant resort (6.) _____was originally created for rich cosmopolitan Britons (7.) _____the turn of the century. As a(8.)____, it still retains an air of faded, fashionable beauty. The town (9.)_____has a numerous boutiques selling the latest designer clothes from Paris. In (10.) _____, there is a beautiful beach which makes a good place for a walk or a swim (11.) _____the weather is hot enough. Honfleur is another port which is becoming a popular destination (12.) _____the British. Tourists are attracted (13.) _____it because of its quaint atmosphere. The small commercial area is surrounded (14.) _____tall narrow houses and outdoor cafes which spread onto the cobbled quays. Honfleur also boasts some of the best restaurants in (15.) _____north of France, which is another of its attractions.

Giải phương trình sau : Căn x+1=2x-1

Mot vat đuoc tha roi tu do tu do cao 20m hoi thoi gin vật chạm đất là bao nhieu lấy g= 10m/s2

Sử dụng cấu trúc suggest + V_ing hoặc suggest (that) + S + (should) để viết lại các câu sau: 1.We had better go home early 2.Why don't you attend the important meeting? 3.You had better visit her tomorrow 4.I don't want you to go out late at night 5.I like reading the book than watching the film 6.I want you to invite her to the party 7.How about drinking a cup of coffee? 8.Your health is worse 9.We have a lot of time we can go for a walk 10.I would rather you stayed in bed than went out 11.We shouldn't leave the party late 12.If they don't finish our homework,he will punish us 13.I prefer go swimming to playing football 14. Driving carelessly is very dangerous.We should drive carefully

Mot vat đuoc tha roi tu do tu do cao 20m hoi thoi gin vật chạm đất là bao nhieu lấy g=10m/s2