Một cốc nước hình trụ có chiều cao , đường kính . Mặt đáy phẳng và dày , thành cốc dày . Đổ vào cốc nước sau đó thả vào cốc 5 viên bi có đường kính . Hỏi mặt nước trong cốc cách mép cốc bao nhiêu . (Làm tròn đến hai chữ số sau dấu phẩy).

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the correct sentence which is built from the words and phrases given:

  Thank you very much / invitation / I / come / your house / on time / Good bye.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  my parents / arrange / picnic / the National Park / weekend.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  I / also / invite / some / classmates.
  
  

• Choose the word that has the underlined part pronounced differently from the rest:

  theatre                        there                       anything                      three

• Choose the correct sentence which is built from the words and phrases given:

  I / busy / prepare / my English examination / next week.
  
  

• Choose a word that has different stress pattern:

  special                      mingle                      building                    among

• Choose the correct sentence which is built from the words and phrases given:

  the graph / amount of smoke / increase / in big cities.
  
  

• Choose the correct sentence which is built from the words and phrases given:

  Smoke / cars / emit / identify / by 46%.
  
  

• Choose the word that has the underlined part pronounced differently from the rest:

  method                      together                         both                      month

• Choose the correct sentence which is built from the words and phrases given:

  20% of the smoke / come/ burning garbage.