我叫沃尔特-略文。
Walter Lewin, a physics professor at M.I.T., is especially popular. Fans enjoy his entertaining demonstrations.
例如麻省理工物理学教授沃尔特.莱文,由于大量爱好者喜欢他充满乐趣的演示和讲解而备受欢迎。
So the work that Walter Lewin has to do to bring it from A to B is the integral in going from A to B of my force, dx.
所要做的功,就等于A到B的,我的力的积分,这是个点积。
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