[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f7stTkEG68Vlg3cQPQXDZGPWCxMWp0PkxB6rBOZikguY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":11,"question":18,"related":19,"source":30,"type":31},[],"2024-09-27 16:25:51",160361944,[8,9,10,9],"f","c","e",{"count":12,"courseId":13,"courseImg":14,"courseName":15,"workId":16,"workName":17},11,"cb3676e1e27e4c17c4a26d07d19853d9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F634681734cefd9812919a58df63ead41.png","大学物理A2","work_35998193","9-1 简谐振动 振幅 周期和频率 相位(副本)","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff9796019d11b40a37a9ad98b7a766c46.png\">一水平弹簧简谐振子的振动曲线如图所示,振子处在位移的绝对值为A、速度为零、加速度为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcf8527d76d2eacd395e12bb27834e2bd.webp\">和弹性力为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb328ee2a5eeed46c86c0852b819c5392.webp\">的状态,则对于曲线上的 点",[20,32,35,45,54,63,72,82,89,94],{"answer":21,"createTime":22,"id":23,"options":24,"question":29,"source":30,"type":31},[],"2024-09-29 21:59:22",160361942,[25,26,27,28],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8baeebaccbaaf693cac4d493c15c311d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7f4bd994048c06744dee77fcceda75ab.png\">","无法确定","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F43379211074ca1ad3858292da30eec56.png\">","两个完全相同的轻弹簧分别挂着质量为m1及m2的物体,设m1>m2,当它们以相同振幅作简谐振动时,其振动能量分别为E1和E2,则( )","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":18,"source":30,"type":31},[],[8,9,10,9],{"answer":36,"createTime":37,"id":38,"options":39,"question":44,"source":30,"type":31},[],"2024-09-29 21:59:21",160361945,[40,41,42,43],"100N","50.6N","98.6N","120N","一质量为0.1kg的物体作振幅为1.0m和周期为0.20s的简谐振动,其作用在该物体上的力的最大值为",{"answer":46,"createTime":5,"id":47,"options":48,"question":53,"source":30,"type":31},[],160361946,[49,50,51,52],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3008ded20e00aea8d561eb9ba3473d02.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3b822a74c7513b11d27d4cc473f93b30.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F88c12fcbe55c3329fe64de27b5e172d3.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6811da585d7f63b5c934302e63058d2b.webp\">","已知一按余弦函数作谐振动的振动曲线如图所示,试确定:圆频率\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8c2889799e2288af0690e674934b2255.webp\">=\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F45292e391e35e27a9d8b76b6007bd4fe.png\">",{"answer":55,"createTime":22,"id":56,"options":57,"question":62,"source":30,"type":31},[],160361947,[58,59,60,61],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffd73a363f0282bea041898b0e4145f92.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F55bc44f0477cda6f1f7a0a531c05e5d9.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54a1fb18bbabace8c19e35ca286a96bf.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F35cf82a883fd8f617fb61e4f84a9df6b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbd5eb580f1656a8ad3c05ee476595c3d.jpg\">已知一按余弦函数作谐振动的振动曲线如图所示,试确定:初相\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F020ac7436214aa2d33dfbfc15aed0715.png\">",{"answer":64,"createTime":5,"id":65,"options":66,"question":71,"source":30,"type":31},[],160361948,[67,68,69,70],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1abe4506417b2173c03544214a29fcbc.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F457e4eb9ba6505540954225548e09155.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb6053157ea60029ea1e8b48042ee47cc.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc68115e817827be87bc3be2419f5547a.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":73,"createTime":74,"id":75,"options":76,"question":81,"source":30,"type":31},[],"2024-09-27 22:19:42",160393252,[77,78,79,80],"月亮上的大","地球上的大","一样大","不一定","同一弹簧谐振子,在月亮上和地球上的振动周期( )",{"answer":83,"createTime":84,"id":85,"options":86,"question":87,"source":30,"type":88},[],"2024-09-27 23:21:03",160399903,[],"质量为2kg的物体悬于弹簧下端,使之伸长20cm.不计弹簧的质量,若物体从平衡位置向下拉10cm,然后释放.经过平衡位置时速度的大小是 ____m\u002Fs.(保留一位小数)(g=9.8)",2,{"answer":90,"createTime":84,"id":91,"options":92,"question":93,"source":30,"type":88},[],160399906,[],"在一竖直轻弹簧下端悬挂质量m=5g的小球,弹簧伸长\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd7922203721031f3274e3f6793365c26.webp\">l=1cm而平衡,经推动后,该小球在竖直方向作振幅为A=4cm的振动,则小球的振动周期为____s.(保留一位小数)",{"answer":95,"createTime":96,"id":97,"options":98,"question":18,"source":30,"type":31},[],"2024-09-28 22:49:32",160475819,[99,100,101,102],"a、f","a、c","a、e","b、c"]