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範例:週期波與質點簡諧運動

圖示為正弦波的傳播，實線為t1=1.0 sec時之波形，虛線為t2=2.5 sec之波形，且t2-t1小於一個週期，下列何者正確?(A)波長為40cm (B)波向右傳播時週期為6sec (C)波向左傳播時波速應為20 cm/s (D)質點振動之最大速率可能為5πcm/s (E)質點振動在波峰處的加速度可能為5π2/9cm/s2。 [88省聯]


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By admin – 2009 年 08 月 10 日

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