吞没
发表于 2025-3-25 04:13:27
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来这真柔软
发表于 2025-3-25 07:31:54
Energy and momentum,impler, more subtle, ways of treating systems than the brute force application of the equations of motion. In many cases there are quantities that remain constant during the evolution of a system. If one can identify such constants of the motion, the subsequent solution of the problem may be conside
共栖
发表于 2025-3-25 11:43:18
Rigid bodies and non-inertial frames,acting with forces that are so’ stiff’ that the separation between any two particles remains constant. From the considerations of the previous chapter we know that these internal forces do not affect the dynamics of the body. What distinguishes a rigid body from a point mass is its extension in spac
步履蹒跚
发表于 2025-3-25 17:15:09
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Self-Help-Group
发表于 2025-3-25 23:22:23
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Transfusion
发表于 2025-3-26 00:43:47
cal outline of the development of mechanics, mentioning the names and dates of the main participants and summarizing their contributions. Preface vii Chapter 1 Newton‘s laws 1. 1 Historical introduction Primitive ideas about mechanics were exemplified by the state ments of Aristotle (384-322 Be), who asserte978-0-7102-0280-2978-94-010-9171-8
Coronary
发表于 2025-3-26 04:37:20
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insurrection
发表于 2025-3-26 08:55:28
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hangdog
发表于 2025-3-26 14:04:10
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Congeal
发表于 2025-3-26 20:22:15
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