Bài 1: Một vật có m = 10 kg rơi từ trên cao xuống. Biết tại vị trí vật cao 5 m thì vận tốc của vật là 13 km/h. Tìm cơ năng tại vị trí đó, g = 9,8 m/s2.

Giúp mình bài này đi mọi người ơi

Find one mistake in each of the following sentences 51. 'Does' Mary 'feel' 'weller' today than she 'did' yesterday? A B C D 52. 'Nobody' is 'happy' 'than' Miss Snow 'is' A B C D 53. China 'is' 'the' country with 'largest' 'population' A B C D

Chỉ mk.câu 2 thui viết ra giấy 4 ôly nhé (ưu tiên ng viết giấy 4 ôly cho câu trả lời hay nhất ..phải đúng nhé)

Một vật có khối lượng 500g ở độ cao z so với mặt đất có thế năng trọng trường là 100J. Chọn mốc thế năng tại mặt đất, tính độ cao z. Lấy g = 10m/s2.

Câu thơ miêu tả cụ thể những nét đặc trưng của dân chài lưới

Làm giúp m với mọi người, hứa vote 5s+câu tlhn II.-Read the following passage carefully, then write True (T) or False (F) for each statement. . The people of Kiribati are afraid that one day their country in the not-too-distant future will disappear from the surface of the earth. Several times this year, the Pacific island nation has been flooded by a sudden high tide. These tide, which swept across the island and destroyed houses, came when there was neither wind nor rain. This never happened before. What is causing these mysterious high tides? The answer may be global warming. When fuels like oil and coal are being burned, pollutants are released, these pollutants hold heat in the earth’s atmosphere. Warmer temperatures cause water to expand and also create more water by melting glaciers and polar ice caps. If the situation continues, scientists say that many countries will suffer, Bangladesh, for example, might lose one-fifth of its land. The coral island nations of the Pacific like Kiribati and the Marshall Islands, however, would face an even worse fate – they would be swallowed by the sea. The loss of these coral islands would be everyone’s loss. Coral formations are home to more species than any other place on the earth. . . T F 1. In Kiribati there were sudden high tides coming when there was no wind or rain.   2.High tides without wind or rain often happen in Kiribati.   3. Global warming is definitely the cause of those mysterious high tides.   4.The loss of coral islands doesn’t affect people on the earth.   5. Coral reefs play an essential role in marine life.  

I (not be) ......at work tomorow. I'm taking the day off

Minh is sitting in Dy Lai’s surgery .He is very worried and Dr Lai notices this .She smiled at Minh and tells him not to worried , She explains that one of Minh’s teeth has a cavity but it’s isn’t serious . Dr Lai filled the cavity in Minh’s tooth . She finishes in ten minutes . Minh is very pleased .Dr Lai says that Minh must brush his teeth very carefully everyday because clean and healthy teeth are very important for his health Where is Minh ? ............................................................................................................. Is he worried ? -................................................................................................................. c.Is the cavity in Minh’s tooth serious ? -.................................................................................................................. d.What does Dr Lai do with with the cavity in Minh’s tooth ? -.................................................................................................................. e. What does Dr Lai say ? -.................................................................................................................. f. How does Minh feel when he leaves the surgery ?

Màu sắc chính của mẫu ? Đậm nhạt trên mẫu như thế nào? Muốn vẽ được màu cho sát mẫu ta phải làm như thế nào. giúp mk nha!!1