[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f9cmHGnXK6tTyIC-6YsNYNkZlpRXIShsKQBDlGWmIX90":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":9,"question":16,"related":17,"source":27,"type":28},[],"2024-12-13 15:19:15",170887168,[8,8,8,8],"",{"count":10,"courseId":11,"courseImg":12,"courseName":13,"workId":14,"workName":15},27,"f0b213f97b29e58a73435e62c4bfd308","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6610c93159302731386b9be058dde3fa.png","大学物理B(下)-2024-2025-1","work_36877170","第十一章机械波和电磁波作业","{B11-1-5一平面简谐波沿x轴正方向传播,t = 0 时刻的波形图如图所示,则P处质点的振动在t = 0时刻的旋转矢量图是[ ]\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff6e9201fe2de2c3e047ad9cd1a2862cf.png\">\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F693b427600b43187e9b5b5de6dc803fa.png\">}",[18,29,34,43,52,55,64,69,78,87],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],170887160,[22,23,24,25],"O点的振幅为-0.1 m","波长为3 m","b两点间相位差为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8bff6535954f800512c37a0dc568ba84.png\">","波速为9 m\u002Fs","{B11-1-1平面简谐波的表达式为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F09291b588d68e1d5c5f169a590e6b2f6.png\"> (SI) ,t = 0时的波形曲线如图所示,则[ ] \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F81a8ece1e41a12ec6cd90b85d48a3e4f.jpg\">}","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":27,"type":28},[],170887162,[8,8,8,8],"{B11-1-2平面简谐波沿Ox正方向传播,波动表达式为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Feffc8f15fe83b93a7947169738861980.png\"> (SI),该波在t = 0.5 s时刻的波形图是[ ]\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F72a5c9722c03247e733dfd5c55051bb3.png\">}",{"answer":35,"createTime":5,"id":36,"options":37,"question":42,"source":27,"type":28},[],170887164,[38,39,40,41],"0","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8bff6535954f800512c37a0dc568ba84.png\">","p","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F266241db4229502539511c819b499d1f.png\">","{B11-1-3图示为沿x轴负方向传播的平面简谐波在t = 0时刻的波形,若波的表达式以余弦函数表示,则O点处质点振动的初相为[ ] \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb4796937c214b6c2cb3bed0699288b38.png\">}",{"answer":44,"createTime":5,"id":45,"options":46,"question":51,"source":27,"type":28},[],170887166,[47,48,49,50],"2.86 m","2.19 m","0.5 m","0.25 m","{B11-1-4频率为 100 Hz,传播速度为300 m\u002Fs的平面简谐波,波线上距离小于波长的两点振动的相位差为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F450513191c64b68ced28ff1d1f9cb1a7.png\">,则此两点相距[ ]",{"answer":53,"createTime":5,"id":6,"options":54,"question":16,"source":27,"type":28},[],[8,8,8,8],{"answer":56,"createTime":5,"id":57,"options":58,"question":63,"source":27,"type":28},[],170887170,[59,60,61,62],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff75e51a42ee321d8b67a6582ee6f15ac.png\">m","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9f2ec4c0e3d1195c49e6b9c03f27ec10.png\">m","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd8b8dbd270e15bf2ad594f6184e35bb0.png\">m","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2ca078b39b91e6cbc1878af885ebb761.png\">m","{B11-1-6一个平面简谐波沿x轴正方向传播,波速为u=160m\u002Fs,t=0时刻的波形图如图所示,则该波的表式为[ ]\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb3e884a82285d57578ccccb8af3cb9f2.png\">}",{"answer":65,"createTime":5,"id":66,"options":67,"question":68,"source":27,"type":28},[],170887171,[8,8,8,8],"{B11-1-7如图所示为一平面简谐波在t=0 时刻的波形图,该波的波速u=200 m\u002Fs,则P处质点的振动曲线为[ ]\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F09653eb7818019b53909504caba08ac0.jpg\">\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F20543cc49a7858fd57327e0f35214bae.png\">}",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":27,"type":28},[],170887172,[73,74,75,76],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0be1ab4c6fb254d2c116d71bf4889fe5.png\">(SI)","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe076d289b3c15ffcd58649584705fd70.png\">(SI)","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc6afd473fed7ebadf28a7d194cc355f5.png\">(SI)","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb32c27440d78497a6f0f9eeb8895b490.png\">(SI)","{B11-1-8一沿x轴负方向传播的平面简谐波在t = 2 s时的波形曲线如图所示,波速u=1m\u002Fs,则原点O的振动方程为[ ]\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F32af3fd3590cc448bf4182caf973bc88.png\">",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":27,"type":28},[],170887173,[82,83,84,85],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcec85a8f3fd0bd1badafae8a159ee532.png\">(SI)","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F53f4ace07da56992937468eaf2d96332.png\">(SI)","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F808388f244dda6c255f350bca6b2c0c0.png\">(SI)","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1345e820f46331402cc4d9f0617dce98.png\">(SI)","{B11-1-9图中画出一平面简谐波在t = 2 s时刻的波形图,则平衡位置在P点的质点的振动方程是[ ]\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc7573f6efc8ae10620317a1a089cf6f5.png\">",{"answer":88,"createTime":5,"id":89,"options":90,"question":95,"source":27,"type":28},[],170887174,[91,92,93,94],"A点振动速度大于零","B点静止不动","C点向下运动","D点振动速度小于零","{B11-1-10横波以波速u沿x轴负方向传播.t时刻波形曲线如图所示,则该时刻[ ]\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc6fb8e7df794f6c7ccf185393104cc09.jpg\">}"]