• 2022-07-26
    一简谐振动的旋转矢量图如图所示,振幅矢量长2cm,则该简谐振动的振动表达式为 (SI) [img=178x119]1803dec0f970370.jpg[/img]
    A: [img=135x45]1803dec103ae8b0.jpg[/img]
    B: [img=130x46]1803dec10e73a00.jpg[/img]
    C: [img=139x47]1803dec11980355.jpg[/img]
    D: [img=130x48]1803dec123a4585.jpg[/img]
  • 举一反三