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Clearnote
Q&A
Senior High
Physics
求解
Physics
Senior High
6 monthsago
外套呢?
求解
) 12/縱波沿x軸往+x方向行進,質點振動位 移y以向右為正、向左為負,在時刻 1=0的函數圖如右圖所示。請問圖中各 位置質點的振動方向為何? y (cm) +0.5 T 20 40 -0.5→ 60 80 100 x(cm) 位置 20 cm 40 cm (A) 靜止 向左 60 cm 靜止 (B)- 靜止 向右 靜止 (C) 靜止 靜止 靜止 (D) 向左 靜止 向右 (E) 向右 靜止 向左
聲波
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