• 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 [img=178x119]1803b2ba947ecca.jpg[/img]
    A: [img=135x45]1803b2ba9d8bb82.jpg[/img]
    B: [img=130x46]1803b2baa7ff600.jpg[/img]
    C: [img=139x47]1803b2bab232bd6.jpg[/img]
    D: [img=130x48]1803b2babc6b359.jpg[/img]
  • 举一反三