-- 作者： 乱舞の菲尔德 -- 发布时间： 2007/08/29 02:33pm 啥也不说了，把这些东西翻成中文我也未必能做上来一道，各位会做么？ [b][color=#0000FF] A positively charged glass rod attracts object X. The net charge of object X (1) may be zero or negative (2) may be zero or positive (3) must be negative (4) must be positive The potential energy stored in a compressed spring is to the change in the spring’s length as the kinetic energy of a moving body is to the body’s (1) speed (3) radius (2) mass (4) acceleration What is the resistance at 20.°C of a 2.0-meter length of tungsten wire with a cross-sectional area of 7.9 × 10–7 meter2? (1) 5.7 × 10–1 Ω (3) 7.1 × 10–2 Ω (2) 1.4 × 10–1 Ω (4) 4.0 × 10–2 Ω What is the speed of a ray of light (f = 5.09 × 1014 hertz) traveling through a block of sodium chloride? (1) 1.54 × 108 m/s (3) 3.00 × 108 m/s (2) 1.95 × 108 m/s (4) 4.62 × 108 m/s Two waves traveling in the same medium and having the same wavelength (λ) interfere to create a standing wave. What is the distance between two consecutive nodes on this standing wave? A tritium nucleus is formed by combining two neutrons and a proton. The mass of this nucleus is 9.106 × 10–3 universal mass unit less than the combined mass of the particles from which it is formed. Approximately how much energy is released when this nucleus is formed? (1) 8.48 × 10–2 MeV (3) 8.48 Mev Pieces of aluminum, copper, gold, and silver wire each have the same length and the same cross-sectional area. Which wire has the lowest resistance at 20°C? (1) aluminum (3) gold (2) copper (4) silver A lithium atom consists of 3 protons, 4 neutrons, and 3 electrons. This atom contains a total of (1) 9 quarks and 7 leptons (2) 12 quarks and 6 leptons (3) 14 quarks and 3 leptons (4) 21 quarks and 3 leptons If a proton were to combine with an antiproton, they would annihilate each other and become energy. Calculate the amount of energy that would be released by this annihilation. The magnitude of the force the Sun exerts on Uranus is 1.41 × 1021 newtons. Explain how it is possible for the Sun to exert a greater force on Uranus than Neptune exerts on Uranus. What fundamental force holds quarks together to form particles such as protons and neutrons? (1) electromagnetic force (2) gravitational force (3) strong force (4) weak force What is the magnitude of the force needed to keep a 60.-newton rubber block moving across level, dry asphalt in a straight line at a constant speed of 2.0 meters per second? (1) 40. N (3) 60. N (2) 51 N (4) 120 N What is the wavelength of a light ray with frequency 5.09 × 1014 hertz as it travels through Lucite? (1) 3.93 × 10–7 m (3) 3.39 × 1014 m (2) 5.89 × 10–7 m (4) 7.64 × 1014 m (2) 2.73 MeV (4) 273 MeV [/color][/b] ps：答案baidu上有，如果哪位真的有雅兴清搜索“英语物理题”查查看。最后，千万表告诉我这些题真的有人会做，来这里灌水的话请随便。 -- 作者： Shark之魂 -- 发布时间： 2007/08/29 03:20pm 这题不是不能做.........主要是英语不过关.......... 还有就是像这个 What is the speed of a ray of light (f = 5.09 × 1014 hertz) traveling through a block of sodium chloride? 一条频率为5.09 × 1014赫兹的射线,穿过一块氯化钠,求它在氯化钠中的传播速度.(貌似是这么翻译吧.查了几个词的说) 胡乱想一下.这个用n=c/v 就可以做了,关键是要知道折射率n啊.......不知道这么做对不对. [br][br][color=#990000][b]-=-=-=-=- 以下内容由 [i]Shark之魂[/i] 在 [i]2007年08月29日 02:29pm[/i] 时添加 -=-=-=-=-[/b][/color] Baidu上没查到答案先查到部分翻译了.................. A positively charged glass rod attracts object X. The net charge of object X (1) may be zero or negative (2) may be zero or positive (3) must be negative (4) must be positive 一个带正电的玻璃棒可以吸引物体X，那么物体X的净电荷为 （1） O或者是负电 （2） 0或者是正电 （3）一定是负电 （4）一定是正电 很显然这个题应该选(1) 带电物体对轻小物体有吸引作用,这个初中就学过......正负电荷相互吸引我就不用说了吧......... -- 作者： 索蕾塔织姬 -- 发布时间： 2007/08/29 06:34pm ……物理……什么叫物理………… 话说~楼上你居然~2点半上网啊……难道今天休息？ -- 作者： Shark之魂 -- 发布时间： 2007/08/29 07:50pm 汗......再补就疯了.........31号~1号就月考了...........都提前上了一个月的课了,再不让休息,学生就该爆了.