Động năng dao động của một con lắc lò xo được mô tả theo thế năng dao động của nó bằng đồ thị (hình vẽ). Cho biết khối lượng của vật bằng 100g, vật dao động giữa hai vị trí cách nhau 8 cm. Tính tần số góc của vật.

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  He said that it wasn’t raining that day ______________ .
  
  

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

  If you left the milk out of the fridge in this weather, it’ll go off.

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

  Far more money is being spent on food than spent ten years ago.

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

  The TV company who’s contract is up for renewal is losing money.

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

  The boys were hiding between the bushes in the garden.

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

  He advised me please wear a wig if I didn’t want to be recognized.

• Choose one sentence that has the same meaning as the root one:

  "Don’t forget to bring the camera, will you?” she said to me.
  
  

• Choose one sentence that has the same meaning as the root one:

  I hope the weather will clear up. Then I’ll be able to go out.
  
  

• Choose one sentence that has the same meaning as the root one:

  The workmen finished, and then Mr. Jones came home.
  
  

• Choose one sentence that has the same meaning as the root one:

  The Mayor is opening the new theatre on Saturday.