Cơ năng của một vật có khối lượng m dao động điều hòa với chu kì T và biên độ A là:  

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  Many of the fascinating features of desert plants are ____________.
   

• Choose the best answer for the following sentence:

  There was a time when I couldn't get to the top of the class, ____________ hard I worked.
   

• Choose the best answer for the following sentence:

  Sorry that I can't join the picnic; I'm busy. ____________, I don't have any money after buying all these stuffs.
   

• Choose the best answer for the following sentence:

  He's the best boss I've ever had. ____________, he always buys everyone a present on their birthdays.
   

• Choose the best answer for the following sentence:

  It's difficult to think of anything nice to say about my neighbor's naughty boys, ____________, they are at least honest.
   

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

  three              south               southern                    both

   

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

  remained                explored                 separated                    travelled

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

  loose             smooth               food                   flood

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

  enormous               rough                 enough                 double

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

  society              geography                 dry                 sandy