Bốn vật m₁, m₂, m₃ và m₄ với m₃ = m₁ + m₂ và m₄ = m₁ – m₂. Gắn lần lượt các vật m₃ và m₄ vào lò xo có độ cứng k thì các chu kì dao động của hai con lắc là T₃ và T₄. Khi gắn lần lượt các vật m₁ và m₂ vào lò xo này thì chu kì T₁ và T₂ của hai con lắc là:

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Một số câu hỏi khác có thể bạn quan tâm.

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  Since they aren’t answering their telephone, they ___________.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  ______, he did not receive respect from the people.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  I wish you _______ making so much noise! I just need to relax for a while.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  Gold, as well as silver, _______ in price, he said.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  Several cars, _______ owners had parked them under the trees, were damaged.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  No sooner had we left the house _______ it started snowing.  

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  Please cut my hair _______ the style in this magazine.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  _______ anyone object, the plan will be reconsidered.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions:

  I'm really sleepy today. I wish I _______ Bob to the airport late last night.         

• Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following question:

  Not only………………the exam but she also got a scholarship.