求这几道大题

来源：蜘蛛抓取(WebSpider) 时间：2017-07-14 01:23 标签： 求婚大作战主题曲中文
求求各位物理大哥帮我算算这几道题！！！！！_物理吧_百度贴吧
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求求各位物理大哥帮我算算这几道题！！！！！收藏
Find the linear speed that the bottom of a test tube must have in a centrifuge if the centripetal acceleration there is to be 52920 times the acceleration of gravity. The distance from the axis of rotation to the bottom of the test tube is 6.4 cm. ？？？km/sJill of the Jungle swings on a vine 5.5 m long. What is the tension in the vine if Jill, whose mass is 63 kg, is moving at 2.3 m/s when the vine is vertical?？？？NDriving in your car with a constant speed of 12 m/s, you encounter a bump in the road that has a circular cross-section, as indicated in the figure. The radius of curvature of the bump is 33.4 m. At what speed must you go over the bump if people in your car are to feel "weightless"? ？？？m/s You swing a 4.3-kg bucket of water in a vertical circle of radius 1.4 m. (a) What speed must the bucket have if it is to complete the circle without spilling any water?？？？m/s
52920g的加速度.....看了就吓人-。-
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求这三道大题怎么写!&
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初中的题也太简单了
我还是凉生呢
貌似是初中英语吧
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