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arXiv physics/0412107physics.ed-ph
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物理学导论:新经院哲学

Introductory physics: The new scholasticism

Sanjoy Mahajan, David W. Hogg

摘要:

大多数入门物理教科书忽略了空气阻力的情况下,一个精明的学生可以观察到,它占主导地位的动态。我们从许多书中举出例子。使用量纲分析,我们讨论如何估计空气阻力和重力的相对重要性。讨论可以用来减轻这些教科书的有害影响。错误地忽视空气阻力是他们许多非物质的教义之一。物理教科书不应该教正确的物理吗?

英文摘要:

Most introductory physics textbooks neglect air resistance in situations where an astute student can observe that it dominates the dynamics. We give examples from many books. Using dimensional analysis we discuss how to estimate the relative importance of air resistance and gravity. The discussion can be used to mitigate the baleful influence of these textbooks. Incorrectly neglecting air resistance is one of their many unphysical teachings. Shouldn't a physics textbook teach correct physics?

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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