Một vật nhỏ có khối lượng 500 g dao động điều hòa dưới tác dụng của một lực kéo về có biểu thức N (t đo bằng s). Dao động của vật có biên độ là ?  

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Find a mistake in the four underlined parts of the sentence and correct it:

  I feel the relationship between him and me is getting close and closer.

• Choose the best answer for the following sentence:

  Tell her ______________________ for school again.
   

• Find a mistake in the four underlined parts of the sentence and correct it:

  The Vietnamese Men's Football team was won a silver medal.

• Choose the best answer for the following sentence:

  We watched the little girl _____________________ across the street.
  
  

• Find a mistake in the four underlined parts of the sentence and correct it:

  We are afraid that his illness is becoming worse and worst.

• Choose the best answer for the following sentence:

  The book is worth ________________________ .
   

• Choose the best answer for the following sentence:

  Having finished ______________________ the reading report, I began to listen to music.
   

• Find a mistake in the four underlined parts of the sentence and correct it:

  I’ve turned on so much weight recently that I’ll have to go on a diet.

• Choose the best answer for the following sentence:

  I'm considering ______________________ your invitation.
   

• Find a mistake in the four underlined parts of the sentence and correct it:

  If you’re going away tonight, remember to take your door key with you.