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如图ab为光�固定的$frac{1}{4}$圆弧面其下端b与一木板的上表面光�连接木板可以在光�水平面上自由移动其左端固定一个轻弹簧 Template






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sketch 4091 Irie
sketch 1545
sketch 4867 Johnny Depp Ronin Ronin
sketch 3145 Madoka by Николай Герасимов
sketch 3488 cats
sketch 5232 Avril by Teresa Temacha
sketch 2992 Dragon by Iky Sahendra Putra
sketch 4685 Dave Mustaine by Erika Ishikawa

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sketch 2371
sketch 3484 Red Hot Chili Peppers by Nik Zulqarnain
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sketch 3558 Eye Rubel Parvez
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sketch 2810 Lennon by El Harouati Nassera





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tomski如图ab为光�固定的$frac{1}{4}$圆弧面其下端b与一木板的上表面光�连接木板可以在光�水平面上自由移动其左端固定一个轻弹簧 coloring
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如图所示一光源出的光经平面镜反射后照射到凹透镜上光线ab与凹透镜的主光轴平行其中F为凹透镜的焦点O为光心。请画出其对应的入射光线及 sketch template
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如图所示AB为固定在竖直平面内的$frac{1}{4}$光圆弧轨道其半径为R=08m．轨道的B点与光水平地面相切质量为m=0 sketch template
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工程光学（三）——光的衍射 知乎 sketch template
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如图所示光半球的半径为R球心为O固定在水平面上其上方有一个光曲面轨道AB高度为$frac{R}{2}$．轨道底端水平并与半球 sketch template
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如图所示为某种透明介质的截面图 AOC为等腰直角三角形OBC为半径R=10cm的四分之一圆弧AB与水平屏幕MN垂直并接触于A点由红光和 sketch template
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如图所示在光小轮C正下方相距h的A处固定一电量为Q的点电荷电量为q的带电小球B用绝缘细线拴着细线跨过定轮另一端用适当大小的力拉 sketch template
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如图所示水平轨道BC的左端与固定的光竖直四分之一圆弧轨道相切与B点右端与一倾角为θ=30°的光斜面轨道在C点平连接物体经过C点时速 sketch template
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如图所示AB为光的水平面BC是倾角为α的足够长的光斜面ABBC间用一小段光圆弧轨道相连一条长为L的均匀柔软链条开始时静止地放在 sketch template
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24．12分如图所示，绝缘光轨道ABCD竖直放在与水平方成θ＝45°的匀强电场中，其中BCD部分是半径为R的半圆环，轨道的水平部分与 sketch template
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如图所示一玻璃球体的半径为RO为球心AB为直径在B点有一单色光源其中其出的光从M点折射出时折射光线恰好与AB平行则得AM之间的 sketch template
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按要求完成下列光路图A完成如图所示的光路并标出反射角的度数 题目和参考答案——青夏教育精英家教—— sketch template
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如图所示，间距为L=1m足够长的光平行导轨PQ、MN固定在绝缘水平桌面上，导轨左端接有阻值R=4Ω的定值电阻，质量为m=1kg的导体棒ab sketch template
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如图所示竖直面内固定的半径为R的光半圆弧轨道左右端点PQ与圆心在同一水平线上且距地面的高度为$frac{3R}{2}$质量均为 sketch template
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如图AB为光固定的$frac{1}{4}$圆弧面其下端B与一木板的上表面光连接木板可以在光水平面上自由移动其左端固定一个轻弹簧 sketch template
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如图所示M为固定在水平桌面上的有缺口的方形木块abcd为半径是R的$frac{3}{4}$光圆弧形轨道a为轨道最高点de面水平且有 sketch template
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如图AB为光固定的$frac{1}{4}$圆弧面其下端B与一木板的上表面光连接木板可以在光水平面上自由移动其左端固定一个轻弹簧 sketch template
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如图所示在同一竖直平面内AB为光水平轨道的两端点其左端A固定一挡板轻质弹簧的左端固定在挡板上另一自由端被质量为m的小球压在P点处 sketch template
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如图所示等腰三角形导线框abc固定在匀强磁场中ac长为lab长度为$frac{25}{14}$l导线电阻可不计．磁场的磁感应强度为B sketch template
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如图所示在竖直平面内有一固定轨道其中AB是长为R的粗糙水平直轨道BCD是圆心为O半径为R的$frac{3}{4}$光圆弧轨道两 sketch template
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如图所示用属丝AB弯成半径为r的圆弧但在AB之间留出宽度为d小间隙．通过接触起电的方式将电荷量为Q的正电荷均匀分布在属丝上则圆心O sketch template
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如图所示两个$frac{1}{4}$圆弧轨道竖直固定相切于最低点P圆O1的半径为R圆O2的半径为2R圆心O1圆心O2与P点在同一 sketch template
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如图AB为⊙O直径CD为⊙O上不同于AB的两点∠ABD=2∠BAC．过点C作CE⊥DB垂足为E直线AB与CE相交于F点．1 sketch template
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课程门户 章节详情 sketch template
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如图AB是倾角为θ=37°的粗糙直轨道BCD是光的圆弧轨道AB恰好在B点与圆弧相切圆弧的半径为R=3m一个质量为m=1kg的物体从 sketch template
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如图所示表面粗糙的$frac{1}{4}$竖直圆弧轨AB固定在粗糙的水平轨轨道BC上两轨道在B处平连接切点B在圆心O的正下方．一小 sketch template
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如图一长为L的轻杆一端固定在光铰链上另一端固定一质量为m的小球．一水平右的拉力作用于杆的P点P到小球的距离为$frac{L}{3 sketch template