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buihue
2 năm trước
Mọi người giúp mình giải các câu này được hông ạ :3 Nếu đưa quả nặng lên một độ cao nào đó thì vật đó có cơ năng không? Tại sao? Thế năng phụ thuộc vào yếu tố nào ? Các vật rơi từ trên cao xuống có động năng rất lớn nên rất nguy hiểm.Vậy ta cần phải làm gì? C9, C10 SGK vật lý 8
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II. Put the correct preposition for the sentences below. ( giới từ on, in, at...... ) 1. Most Vietnamese people place more emphasis _____ _____ their duties ____ __ their family than their own desires. 2. _____ ___ home, he should show respect ____ ____ his parents, older brothers or sisters, and older relatives. 3. ___ ___ some teenagers, when they rebel ___ ___ their parents, they act as rebels. 4. If you really want ____ ___ get to know ____ ___ their culture, you need ____ __ go there to record their daily activities as well as festivals. 5. There are three ways ______ ____ which a man can acquire a good name: either ____ ___ heroic deeds, ___ ____ intellectual achievements, or _____ _____ moral virtue. 6. If you volunteer _____ ____ present about that cultural aspect, you will get a present ____ ___ the teacher. 7. Rich people who are not educated are often looked ___ __ upon ___ ___ other people. 8. He seems ___ ___ have particular respect and admiration ____ ____ learned people, and learning is considered more valuable than wealth and material success. 9. There is an increase ____ __ the number ___ ___ Vietnamese women taking the roles ___ ___ leaders ____ ___ their organisations. 2 10. You need ___ ___ perfect yourself ___ order to look ____ __ a perfect life partner

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