[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$feeC64Di1yhF8Lui4E7EL_v0cdYLF7zdk85oRmrMsb-k":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2026-01-07 06:10:46",305049246,[8,9,10,11],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F88d47f82563b4cb974670c513fd4d809.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F30d692704a6ca8c6e3b675d8d708225b.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9a61b49db95fbe60e8819bb4dcec6dae.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F273b0315966c8b72553dc26e9f7ad495.webp\">",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","如图所示,质量为m的物体由劲度系数为k1和k2的两个轻弹簧连接在水平光滑导轨上作微小振动,则该系统的振动频率为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5aa53ddad23368e24366b6886f809b0a.png\">",[18,29,38,47,56,65,74,77,86,95],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],305049234,[22,23,24,25],"振幅相等,频率相同,相差为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F176ac2b0fe2758af04179238a4821014.png\">","振幅不等,频率相同,相差为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7bcadc435b24e1004be8a64da69e3ea7.png\">","振幅不等,频率相同,相差为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F176ac2b0fe2758af04179238a4821014.png\">","振幅相等,频率相同,相差为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7bcadc435b24e1004be8a64da69e3ea7.png\">","为使两个同方向振动的简谐振动相交后始终不振动,这两个简谐振动必须满足一下哪个条件( )","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],305049236,[33,34,35,36],"等于\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0e89160b54007821ba33b1b3bb8b4a26.png\">","等于\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F56c91f4035cbea5bbef84eb8b9083a7f.png\">","等于\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa45ada6d55950da754f24abfb85daf7d.png\">","等于零","一倔强系数为k的弹簧振子作谐振动时,设振幅为A,则弹性力在一周期内所作的功:( )",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],305049238,[42,43,44,45],"在负方向最大位移一半处,且向正方向运动","在正方向最大位移一半处,且向正方向运动","在正方向最大位移一半处,且向负方向运动","在负方向最大位移一半处,且向负方向运动","一简谐振动方程为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fdfaed38a46c4d66417adef2315872b13.png\">,则振子的初始状态是( )",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],305049240,[51,52,53,54],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F91fd0f11fe0adce01bfb1f60f07ba29e.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fad05426289f2083a8830094c4ac4a93b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2b4b4b67fb1107752498961df1274836.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4ddc9b6edc5755cbb1c7e92cdc27cac8.png\">","轻弹簧上端固定下系一质量为m1的物体,稳定后在下边又系一质量为m2的物体,于是弹簧又伸长了\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd7922203721031f3274e3f6793365c26.webp\">x,若将m2移去,并令其振动,则振动周期为",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],305049242,[60,61,62,63],"Ta=Tb=Tc","Ta<Tb<Tc","Ta>Tb>Tc","Ta=Tb>Tc","同一弹簧振子按图的三种方法放置,它们的振动周期分别为Ta、Tb、Tc(摩擦力忽略),则三者之间的关系为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F961887da68c759ed3039adb7ef891866.png\">",{"answer":66,"createTime":5,"id":67,"options":68,"question":73,"source":27,"type":28},[],305049244,[69,70,71,72],"5.5cm\u002Fs2","4.5cm\u002Fs2","2.5cm\u002Fs2","6.5cm\u002Fs2","作简谐振动的小球, 振动速度的最大值为vm=3cm\u002Fs, 振幅为A=2cm, 则加速度的最大值为",{"answer":75,"createTime":5,"id":6,"options":76,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":27,"type":28},[],305049248,[81,82,83,84],"B C, C, +p\u002F4","B C, B, -p\u002F4","B C, C, -p\u002F4","B C, B, +p\u002F4","如图所示的旋转矢量图,描述一质点作简谐振动,通过计算得出在t=0时刻,它在X轴上的P点,位移为x=+ \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbc1624fdb8815580ac762a55630a6d0e.webp\">A\u002F2,速度v<0.只考虑位移时,它对应着旋转矢量图中圆周上的?点,再考虑速度的方向,它应只对应旋转矢量图中圆周上的 ?点,由此得出质点振动的初位相值为 ?.\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F859b744b81ec28f21404ecd32b183fa7.png\">",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":27,"type":28},[],305049250,[90,91,92,93],"2.40 s","2.00 s","2.62 s","2.20 s","一简谐振动曲线如图所示.则振动周期是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb1e91306f5dfb553a9a7c0db7d289829.png\">",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":27,"type":28},[],305049252,[99,100,101,102],"ν2\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4e3385cd3cbf93b90ee7dcf06fe2823c.webp\">","ν2 m1\u002F m2","ν2 m2\u002F m1","ν2\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe4c5890ecdada390d4244e572943e3ac.webp\">","两个质量分别为m1、m2并由一根轻弹簧的两端连接着的小球放在光滑的水平面上.当m1固定时, m2的振动频率为ν2, 当 m2固定时, m1的振动频率为ν1,则ν1等于"]