Đáp án:
do áp suất của chất lỏng nito đã tác dụng lên qảu cầu
áp suất chất lỏng ni to lớn hơn nhiều áp suất của nước bên trong quả cầu
=> quả cầu bị vỡ
Giải thích các bước giải:
Nguyên nhân :do áp suất của chất lỏng nito đã tác dụng lên qảu cầu
Giải thích : áp suất chất lỏng ni to lớn hơn nhiều áp suất của nước bên trong quả cầu ⇒ quả cầu bị vỡ
C. Millions of young people play video games. Some play at home. Others play them in arcades. The inventors of the games became very rich. Some of the inventors are as young as 14 or 15.These games are very good fun, but players must be careful. They should not spend much time on these games because they can be addictive and tired or dizzy. Sometimes players spend too much their own time because they like playing video games. One doctor says “This is very bad for children. They should take part in outdoor activities with their friends to develop their social skills. They should be with people of their own age. Children should spend only a small part of their free time playing video games. They mustn’t forget to do other things, too “ Statements True False 1. Many young people play video games. 2. Children should spend a lot of time on playing video games. 3. Video games are not fun. 4. Children should be with people of their own age. 1. Where do people play video games? _________________________________________________________________________________ 2. Why shouldn’t children spend too much time on playing video games? _________________________________________________________________________________ 3. What should they do to develop their social skills? _________________________________________________________________________________ 4. Do you often play video games? ________________________________________________________________________________ D. In the summer holiday, Mr Hung, Mrs Thoa and their children , Lan and Nam, often go to the beach for three days . They always go to Vung Tau in the south of Viet Nam. They usually stay in a small house by the sea, bur sometimes they stau in a hotel. Last summer, they went to Nha Trang. They stay at Thanh Binh hotel for two days. In the morning, Nam played soccer with his father on the beach. Lan and her mother walked along the beach. They visited Tri Nguyen aquarium and saw different kinds of fish there. They also bought a lot of souvernirs for their friends. 1. Do Lan and her family always go to Vung Tau for their summer holiday?_______________________ 2. Where did they go last summer? _________________________________________________________________________________ 3. What did Nam and his father do in the morning? _________________________________________________________________________________ 4. What did they see at Tri Nguyen aquarium? _________________________________________________________________________________ 4. What did the dentist do?___________________________________________________________ E. Tuan asks Mai what she is going to do tomorrow. She answers she is going to write a letter to her cousin, Oanh. Oanh lives with her parents in a small village by the sea. It’s about 90 miles from Vung Tau. Mai and her parents spend their holidays there once or twice a year. Last summer they stayed with Oanh for a week. Thay had a lot of fun. In the morning , they went swimming in the sea . In the afternoon, they went boating and fishing on the lake. Mai asks Tuan to join them on their trip this summer. Tuan says he will ask his parents about that. 1. What is Mai going to do tomorrow?_____________________________________________________ 2. How far is it from Vung Tau to Oanh’s village?____________________________________________ 3. How long did Mai and her parents stay with Oanh last summer? _______________________________ 4.Did they go swimming in the morning? ___________________________________________________ 5. What did they do in the afternoon?______________________________________________________
Giải hết mình câu 2 nhaa Giải đúng mình cho 5 sao ❤️❤️
Cho tam giác ABC vuông tại A và O là trung điểm cạnh BC. Từ O kẻ OD vuông góc với AB (D thuộc AB) và OH vuông góc với AC (H thuộc AC) a) Chứng minh tứ giác ADOH là hình chữ nhật b) Gọi P là điểm đối xứng của D qua O, Q là điểm đối xứng của H qua O. Chứng minh tứ giác DHPQ là hình thoi. c) BQ cắt CP tại I. Chứng minh ba điểm A, I, O thẳng hàng
Làm hộ mình hai bài này đi mọi người
Mục đích và thực chất trong cách tác giả bộc lộ niềm.mong muốn trong đoạn trích xuân diệu
Hai tỉnh a và B cách nhau 180km. Cùng 1 lúc 1 ôtô đi từ A-B và 1 xe máy đi từ b về a. Hai xe gặp nhau ở C từ C -b ôtô đi hết 2h. Từ c-c a xe máy đi hết 4h30p. Tính V mỗi xe. Biết rằng trên đường A-B 2 xe chạy vs V không đổi
Cho a>2 b>2 .Chứng minh ab>a+b Các bạn giúp mk vs
Em hãy nêu lợi ích của việc sử dụng ròng rọc. Lấy ví dụ sử dụng ròng rọc trong thực tế cho lợi ích đó.
c. Choose the correct word A, B, C or D for each gap to complete the following passage. In the match (1)………. Nguyen Du Team, and Trung Vuong Club which took place last Sunday, Nguyen Du Team beat Trung Vuong Club by three goals to two. The last time the two teams met, Trung Vuong club won by three goals (2)………... nil, so Nguyen Du team were making a great discussion to win this match. In the first half of the (3), Trung Vuong club was leading by two (4). However, Trung Vuong Club (5) a number of careless mistakes during the second half. This was after their player, Minh, missed the ball, slipped and (6) heavily. Nguyen Du team then (7) two lucky goals, and in the few minutes before the finish, Vinh shot the ball into the net, bringing the score to three goals to two. Nguyen Du Team (8) played well this season and their fans have good reason to be proud. Trung Vuong Club too, has had good results up to now. This is the first game they lost. 1. A. on B. between C. of 2. A. to B. by C. for 3. A. play B. match C. performance 4. A. matches B. players C. goals 5. A. is making B. makes C. made 6. A. falls B. fell C. is falling 7. A. had B. scored C. put 8. A. plays B. has played C. played
Tính bằng cách thuận tiện nhất : 17,7 x 11 - 17,7
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến