Con lắc lò xo dao động điều hòa trên trục Ox, khi đó gia tốc a của con lắc và li độ x thỏa mãn điều kiện:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

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

  ethnic                  thank                 author                though

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

  daydream               breathe                 threat                  reason

• Choose a word that has different stress pattern:

  eternal               domestic                maximum                 contractual

• Choose a word that has different stress pattern:

  household                 maintain                    workforce                 follow

• Choose a word that has different stress pattern:

  eradicate                  inhabitant                  curriculum                 optimistic

• Choose a word that has different stress pattern:

  contribute               renovate               vacancy                 applicant

• Choose a word that has different stress pattern:

  install              subject                confide               secure 

• Choose the best answer for the following sentence:

  I think I _____________ my door key. I can’t find it anywhere.
  
  

• Choose the best answer for the following sentence:

  If I hadn’t been ill, I ____________ absent from school.
  
  

• Choose the best answer for the following sentence:

  The man is thought ______________ .