压力的惯性
The inertia of stress
摘要：
我们提出一个简单的例子，其中应力的惯性效应的重要性是显而易见的。该系统是一个绝缘的固体窄盘，其表面均匀地带着大小相等、符号相反的电荷。考虑了系统在两个不同方向上的运动。它示出了如何的贡献，以平衡的静电力的身体内开发的应力的能量和动量必须添加到电磁的贡献，以获得预测的结果的质量和能量的相对论等效。
英文摘要：
We present a simple example in which the importance of the inertial effects of stress is evident. The system is an insulating solid narrow disc whose faces are uniformly charged with charges of equal magnitude and opposite signs. The motion of the system in two different directions is considered. It is shown how the contributions to energy and momentum of the stress that develops inside the body to balance the electrostatic forces have to be added to the electromagnetic contributions to obtain the results predicted by the relativistic equivalence of mass and energy.
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