结果1 题目A force of 15 newtons is applied over a distance of 3 meters. The work done is ___ joules. A. 30 B. 45 C. 50 D. 60 相关知识点: 试题来源: 解析 B。解析:功等于力乘以距离,W = Fs = 15×3 = 45J。反馈 收藏
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The relation between the internuclear distances and force constants found for diatomic molecules is discussed, and is shown to carry over to polyatomic molecules. It is shown that internuclear distances of polyatomic molecules can be pre... Badger,Richard M. - 《Journal of Chemical Physics》 被...
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Maxwell confirmed experimentally that this result is true over a wide range of pressure, provided that the pressure is not too small. Eq. (3.3) also indicates that μ increases in direct proportion to Mm and T. Experiments have confirmed that μ increases with temperature but the power slightly...
Jim Overhiser、Joshua Buchman - Work's a Force Times a Distance (feat. Andy Taylor) 专辑: Physics Phormulas: Album 1 (Mechanics) 歌手:Jim OverhiserJoshua Buchman还没有歌词哦Jim Overhiser、Joshua Buchman - Work's a Force Times a Distance (feat. Andy Taylor) / 已添加到播放列表 1 ...
In the plastic contact case, μa could be independent of roughness over a moderate range. It can be seen that μa tends to be high at the smooth surface due to the growth of real area contact, and also tends to be high at the rough surface due to interlocking. Evaluation of μa ...
a real bomb and the devising of the first bombsight. In England theRoyal Flying Corps(RFC) fitted some of its aircraft with bomb carriers, which consisted of a kind of pipe rack beside the observer’s cockpit in which small bombs were retained by a pin. The pin was pulled out over ...
When the mass density ρ is nonzero, the solution is expressed as the definite integral: where the integral is a three-dimensional integral over the volume of all space. When ρ = 0 (in particular, outside Earth), Poisson’s equation reduces to the simpler equation of Laplace. The ...
The simulation is simplified: it assumes a constant unit time step Δt = 1 for each step, and a constant unit mass m = 1 for all particles. As a result, a force F acting on a particle is equivalent to a constant acceleration a over the time interval Δt, and can be simulated ...