物理令人疑惑的問題 - 運動
By Charlie
at 2014-07-12T00:00
at 2014-07-12T00:00
Table of Contents
1.為甚麼聲音在固體中可能出現橫波形式?2.腳踏地時是摩擦力給予腳前進的力,還是地對腳的反作用力給予腳前進的力?腳踏車向右前進時,其前輪摩擦力方向為何?後輪摩擦力為何?又此時後輪摩擦力是靜摩擦力還是動摩擦力?3.甚麼是駐波?
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運動
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By Audriana
at 2014-07-15T12:17
at 2014-07-15T12:17
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