Vật dao động điều hòa với biên độ 6cm, chu kì 1,2s. Trong một chu kì, khoảng thời gian để li độ ở trong khoảng [ -3cm ÷ 3cm] 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 underlined part that needs correction in each of the following questions:

  More than ten students have failed the exam, that surprised the class teacher.    

• Cho hàm số . Tìm các giá trị của  để đồ thị hàm số  cắt trục hoành tại 3 điểm phân biệt?  

• Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions:

  It was suggested that your father gave up smoking for the sake of himself.    

• Cho hàm số y = x4 – 2(2m – 1)x2 + 3m – 2 (C)         Tìm các giá trị của m để (C) tiếp xúc với đường thẳng y = –2 tại hai điểm phân biệt.         

• Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions:

  Air pollution, together with littering, are causing many problems in your large, industrial cities today.         

• Cho (C): y = x3 – 3x2 + 3mx + 6. Có bao nhiêu giá trị của m để đường thẳng d: y = 3x tiếp xúc với (C)         

• Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions:

  The medical science began with the Greek Hippocrates, who earned for himself the title of father of Medicine.         

• Cho (C):  . Tìm các giá trị m hữu tỉ để (C) tiếp xúc với đường thẳng y = 1.         

• Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions:

  With his many theories, Albert Einstein did a great impact on physic, so much so that he is often called the greatest physicist of all time.         

• Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions:  

  The two children tried as hardly as they could to bring about a reconciliation between their parents.