问题
计算题
一圆柱形汽缸，
内部截面积为S，其活塞可在汽缸内无摩擦地滑动，汽缸内密封有理想气体，外部大气压强为p0，当汽缸卧放在水平面上时，活塞距缸底为L0，如图所示．当汽缸竖直放置开口向上时，活塞距缸底为4/5L0.求活塞的质量
答案
以封闭汽缸内的内的气体为研究对象根据玻意耳定律
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一圆柱形汽缸，内部截面积为S，其活塞可在汽缸内无摩擦地滑动，汽缸内密封有理想气体，外部大气压强为p0，当汽缸卧放在水平面上时，活塞距缸底为L0，如图所示．当汽缸竖直放置开口向上时，活塞距缸底为4/5L0.求活塞的质量
以封闭汽缸内的内的气体为研究对象根据玻意耳定律
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| The ancient Olympic Games were religious (宗教的) activities. 1 held the first Olympic Games in the sixth century B. C. At that time, men could be 2 the races. Women had no 3 to take part in the Olympic Games 4 1912. The modern Olympics started in Athens in 1896. Since then we hold the Olympic Games every four years. The IOC (国际奥委会) 5 athletes. So they all have the same chance 6 . Winning at the Olympics is a great honor. Those 7 win at the Olympics are the best in the world." Faster, higher, 8 "is the slogan (口号) of the Olympics. China has won many gold medals 9 Xu Haifeng got China's first Olympic medal. Many excellent players, such as Liu Guoliang and Guo Jingjing, have 10 good examples to us. When Liu Xiang passed the finishing line, all the Chinese people jumped up and down, 11 . Everyone in China felt 12 and proud. As we know, China 13 the host country to hold the 29th Olympic Games in the year 2008. The five Fuwa images (福娃) have been chosen as the official mascots (吉祥物) of the Olympics. 14 athletes will come to Beijing to compete (竞争) for medals. We hope our country can hold the Olympics 15 . We also hope all the athletes can work hard and set more world records. | |||
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