1.Name one situation where the acceleration of an object is in a different direction than the velocity of object.2.If you are jumping,why is it a good idea to bend your knees when you land?(use impulse to explain)3.The chemical compound SiCl₄ (

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1.Name one situation where the acceleration of an object is in a different direction than the velocity of object.2.If you are jumping,why is it a good idea to bend your knees when you land?(use impulse to explain)3.The chemical compound SiCl₄ (
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1.Name one situation where the acceleration of an object is in a different direction than the velocity of object.2.If you are jumping,why is it a good idea to bend your knees when you land?(use impulse to explain)3.The chemical compound SiCl₄ (
1.Name one situation where the acceleration of an object is in a different direction than the velocity of object.
2.If you are jumping,why is it a good idea to bend your knees when you land?(use impulse to explain)
3.The chemical compound SiCl₄ (one silicon atom bonded with four chlorine atoms) is a colorless liquid.Which of the following would you expect to have similar chemical properties,and why?
(A) SiBr₄(one silicon atom bonded with four bromine atoms);
(B) PCl₄(one silicon atom bonded with four tellurium atoms.)
(4) An atom has 17 protons,18 neutrons and 18 electrons.Write the element,mass number and ionization state( for example:⁴He2⁺)

1.Name one situation where the acceleration of an object is in a different direction than the velocity of object.2.If you are jumping,why is it a good idea to bend your knees when you land?(use impulse to explain)3.The chemical compound SiCl₄ (
1、指出一种物体的加速度和速度方向不一致的情况.（答：曲线运动）
2、当你跳跃时,为什么着地的时候最好屈膝?（用冲量来解释）
3、化合物SiCl4（一个硅原子被四个 氯原子包围）是一种无色液体,你认为下列哪种物质具有与之相似的化学性质?为什么?
A) SiBr₄(一个硅原子被四个溴原子包围);
(B) PCl₄(一个磷原子被四个 氯原子包围）
4、一个原子有17个中子、18个质子和18个电子,写出它的化学符号、质量数和电离态（例如 ⁴He2⁺）

英语翻译The particular individual with whom one is concerned in the analysis of any situation is usually given the name of focal person. trash one's name Name one building是什么意思 1.Name one situation where the acceleration of an object is in a different direction than the velocity of object.2.If you are jumping,why is it a good idea to bend your knees when you land?(use impulse to explain)3.The chemical compound SiCl₄ ( situation situation after the name one from His name is Jim Green.Jim is his____(one) name. knows,one,no,his,name(.)英语造句, My ______(one)name is Bob. my _____(one)name is yang name a boy in class one give one's name什么意思 to one's name用法举例 get one's name的意思 spell one's name的意思 spell one's name的中文意思 刚写的英语文章,麻烦改一改!When I tell you our name,you must know us.But you may not know the acount of us and the situation of us.We are pandas,we have lived in the world for millions of years.You may often see us on TV,in fact,we are one