[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fZj9qhWQHQIfhVZgHWURepjSFNm1F6WjRl6kzOKsTzlA":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2023-11-25 06:27:10",108250938,[8,9,10,11],"比原来更远","比原来更近","仍和原来一样远","条件不足,不能判定",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},16,"1bcf06da0d831f54262e2e49401574b2","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd71ac483bfe4c5d11e086c9193d3c42b.jpg","普通物理学","4987c266a2504a05963e845df81661df","第二章 小测验","一炮弹由于特殊原因在水平飞行过程中,突然炸裂成两块,其中一块作自由下落,则另一块着地点(飞行过程中阻力不计)",[21,33,42,45,54,63,72,77,82,87],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2023-11-25 06:27:09",108250930,[26,27,28,29],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa389b31794048b545f66ce225c7a6f3e.webp\">比\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F67f387b102bbcaadf675f2f6ede7db92.webp\">的动量增量少","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa389b31794048b545f66ce225c7a6f3e.webp\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F67f387b102bbcaadf675f2f6ede7db92.webp\">的动能增量相等","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa389b31794048b545f66ce225c7a6f3e.webp\">比\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F67f387b102bbcaadf675f2f6ede7db92.webp\">的动量增量大","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa389b31794048b545f66ce225c7a6f3e.webp\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F67f387b102bbcaadf675f2f6ede7db92.webp\">的动量增量相等","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe91ff2a26c7284b44beeaedfd6278183.webp\">、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc1fb449c83441728d0f8823fb7fa3eee.webp\">两质点的质量有关系\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F216f3ee801d35a635d9276a0e77ccc67.webp\">,受到相等的冲量作用,则( )","v1",0,{"answer":34,"createTime":5,"id":35,"options":36,"question":41,"source":31,"type":32},[],108250935,[37,38,39,40],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7127432232d5869795b787202242a5ec.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F114a18b3f44f9a59a2e5fa8a79a45ff7.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8f6a6496f9fc050975611bcfbcf96782.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe17646afd4a91687d9dfd8d76d866910.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F032bf7c1f6ecf1634031f32395f5cbe9.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F52b99739883a436c75e602d9e7965ab9.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4175bc99f282b8d4dbebcb2e0735fd6c.webp\">,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe17646afd4a91687d9dfd8d76d866910.webp\">","人造地球卫星绕地球作椭圆轨道运动.卫星轨道近地点和远地点分别为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa389b31794048b545f66ce225c7a6f3e.webp\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F67f387b102bbcaadf675f2f6ede7db92.webp\">.用\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F75c750cc2c8219547a985d04423b1e48.webp\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1424934950c9627bcca8334da10b2857.webp\">分别表示卫星对地心的角动量及其动能的瞬时值,则应有( )",{"answer":43,"createTime":5,"id":6,"options":44,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":46,"createTime":5,"id":47,"options":48,"question":53,"source":31,"type":32},[],108250941,[49,50,51,52],"一定守恒","一定不守恒","不一定守恒","以上都不对","一个质点在某一过程中,所受合外力的冲量为零,则质点的动量( )",{"answer":55,"createTime":5,"id":56,"options":57,"question":62,"source":31,"type":32},[],108250945,[58,59,60,61],"0,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F81e5289460e3af24a3b51b24ee907d38.webp\">","0,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa389db86185d83d0b661f0a55478a1c6.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F81e5289460e3af24a3b51b24ee907d38.webp\">, 0","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa75c289be79ef47cb3a4f7ed863015cc.webp\">, 0","一圆锥摆,质量为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F18b78c44fc9829b53b509ff4988ceba4.webp\">小球,在水平面内以角速度\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb4e346b67886d07f899a9716790a0380.webp\">匀速转动.在小球转动一周的过程中,小球动量增量的大小和小球所受重力的冲量大小分别等于( )",{"answer":64,"createTime":65,"id":66,"options":67,"question":70,"source":31,"type":71},[],"2023-12-07 21:53:58",111801883,[68,69],"正确","错误","势能的引入是以保守力作功为前提的,保守力的功等于系统势能增量的负值.",3,{"answer":73,"createTime":65,"id":74,"options":75,"question":76,"source":31,"type":71},[],111801884,[68,69],"外力对质点不做功时,质点的动能保持不变,而且一定保持静止或作匀速直线运动.",{"answer":78,"createTime":65,"id":79,"options":80,"question":81,"source":31,"type":71},[],111801888,[68,69],"不受外力的系统,机械能一定守恒.",{"answer":83,"createTime":65,"id":84,"options":85,"question":86,"source":31,"type":71},[],111801891,[68,69],"系统的外力和内力做功的总和等于系统动能的增量.",{"answer":88,"createTime":65,"id":89,"options":90,"question":91,"source":31,"type":32},[],111801893,[26,27,28,29],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe91ff2a26c7284b44beeaedfd6278183.webp\">、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc1fb449c83441728d0f8823fb7fa3eee.webp\">两质点的质量有关系\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F216f3ee801d35a635d9276a0e77ccc67.webp\">,受到相等的冲量作用,则( )."]