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11#
發(fā)表于 2025-3-23 09:51:29 | 只看該作者
Mechanical Equilibrium: The Equilibrium between the Gravitational Force Per Unit Volume and the GraLet us consider a spherical star of radius ., in equilibrium, stratified in homogeneous concentric layers, whose center is .. We introduce an outward-directed axis . and a unit vector r on this axis, also outward-directed (see Figure 1).
12#
發(fā)表于 2025-3-23 15:47:10 | 只看該作者
The Determination of the Internal Structure by the Density Distribution ,(,),In the light of the relations established in the preceding chapter, it begins to be clear that the study of the internal structure of a star like the Sun consists in discovering how certain physical quantities like the density ., the temperature ., the total pressure ., etc., vary as functions of the distance . from the center.
13#
發(fā)表于 2025-3-23 18:32:42 | 只看該作者
14#
發(fā)表于 2025-3-23 22:43:09 | 只看該作者
15#
發(fā)表于 2025-3-24 02:26:30 | 只看該作者
16#
發(fā)表于 2025-3-24 08:17:03 | 只看該作者
17#
發(fā)表于 2025-3-24 11:39:21 | 只看該作者
18#
發(fā)表于 2025-3-24 15:36:24 | 只看該作者
19#
發(fā)表于 2025-3-24 22:25:44 | 只看該作者
V. Kourganoffcept that gives due credit to the complexity and diverging constraints in which businesses and corporations act today, and it emphasizes and focuses approaches that help ensure that today‘s management decisions and actions will be the basis for tomorrow‘s prosperity.?.978-3-030-02006-4
20#
發(fā)表于 2025-3-25 01:13:48 | 只看該作者
V. Kourganoffcept that gives due credit to the complexity and diverging constraints in which businesses and corporations act today, and it emphasizes and focuses approaches that help ensure that today‘s management decisions and actions will be the basis for tomorrow‘s prosperity.?.978-3-030-02006-4
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