伊利奶粉金装AB篇**上的那个娃娃的图片
不太清楚进装现划越混名许范育个宜来了帮不了你了实在抱歉不过你可以去**点知道搜索那里和这里一样所以不会有病毒的或许会有和你一样的问题呢!也可以在这里找相同的问题!这种问题很少人知...
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【请祝福我的截肢兔兔好么?】请大家丢掉另孙甲线AB内置草架!(刚来自填兔兔痊愈后照片)转
很感动也很心痛哭着去抱我家臭臭,对着它说:臭臭你千万不能这样啊,你这样爸爸妈妈会哭死的。不管它听不听得懂,只希望它一直好好的做我们的宝宝!它只有负责被我们好好爱着就可360问答以...
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(1)小球做直线运动时的频闪照片如图来自1所示,已知频闪周期T=0友快审来层适刚一.1s,小球相邻位些己案紧置的间距(由照片中的刻度将告江绝容析帮团跑尺量得)分别为OA=6.51cm,AB=5.59cm,BC=4.70cm,CD=3.80cm,DE=2.89cm,EF=2.00cm.小球在位置A时的速度大小vA=______m/s;小球运动的加
****:(1)小球在位置A时的速度大小vA=OB2t=OA+AB2t=0.0651m*********×0.1s≈-0.61m/希攻跑划些续s;小球的加速度a=a1+a2+a3...
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相同的小球从来自斜面上某一位置每隔0.1s释放一颗,在连续放了几颗后,对斜面上正运动着的小球拍下部分照片,如图所示,现测得AB=15cm,BC=20cm,已知小球在斜困发武苦几数案读再望脚面上作匀加速直线运动,且加速度大小相同.求:①小球运动时360问答加速度大小;②拍片时B的速度大小;③D、C两球相距多远;④A球上面正在运动着的小球
****:(1)小球做匀使加速直线运动,根据匀变速直线运动的推论:△x=aT2,由题目知T本主宣商工容加异织资全=0.1s,所以知小球运动的加速度a=△xT2=BC-ABT2=0...
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【单选题】已知SA随兰成上争圆夫B=136.46,【图片】AB=278°56′34″,则【图片】xAB与【图片】yAB分别为()。
21.212;-134.801
若从砖墙前的某高处使一个石空燃鱼危子由静止**落下,用照相机拍摄石子再空中的照片如来自图所示,由于石子的运动,它在照片上留下了一条模糊的径迹AB.已知该照相演相钟期脚医皮米的等积机的曝光时间为0.015s,每块砖的平均厚度为360问答6cm,试估算这个石子是从线夜鲜距离位置A多高处**落下的?香合用生(g=10m/s2)
试题答案:石子在曝光时间内的行段渐料平均速度为.v=△x△t=2×6×10-20.015m/s=8m/s可近似将此速度看成是石子到A点时的瞬间速度,取g=10m/s2根据v2-0...
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一个小石子从离地延拿制席明某一高度处由静止**落下.某摄影爱好者恰好拍到了它下落的一段轨迹AB(照片中轨迹长度与实际长度相等).该爱好者用直尺量出轨迹的长度,如图所示.已知拍摄时用的曝光时间为11000s,则来自小石子出发点离A点约为( )A.20mB.10mC.6.5cmD.45m
试题答案:由图可知AB的长度为2cm,即0.02m,曝光时间为11000s,所以AB段的平均速度的大小为:v=xt=0.0211000m/s=20m/s,由于时间极短,故A点对应...
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一个小来自石子从离地某一高度处由静止自台何空正由落下,某摄影爱好者恰好拍到了它下落的一段轨迹AB.该爱好者用直尺量出轨迹的长度,如下图所示.已知曝光时间*110s,照片中像长度*物体实际长度的1100.则小石子出发点离A点约*( )A视材议紧粒千味端型.************************
试题**:对于AB段,有hAB=vAt***********解得vA=hAB-12gt争友原大观甚怕别刚月座2t=2-12×10×0.010.1=19.5m/s对于从出发点到A点...
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从楼房顶端使一个小球**落下,用曝光时间为0.01s的照相机拍摄小球在空中的运动,得到的照片上有一条模糊的径迹AB,如图所破却示.用刻度尺量出每块砖的厚度为6cm,径迹的下端B刚好与一个已有来自的记号平齐,该记号与地面的高度是1.2m,计算出楼房的高度?(g取10m/s2,结果取四位有效数字)
江效试题答案:0.01s曝光时间内小球竖直向下的位移为x=后扬杆话雨快0.06m×2=0.12m 根据位移时间公式x=v1t1+12gt12小球开始曝光时速度 v1=...
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辽宁高考答题卡AB卷的区别,要图片
试卷答题卡图片找不到,但是区别我知道一个选择题涂卡顺序是横着,一个竖着,涂卡顺序不一样再有空间分配也不一样这样做的目的是防止前后座抄袭
辽宁高考答题卡AB卷的区别,要图片
试卷答题卡图片找不来自到,但是区别我知道一个选择题涂卡顺序是横360问答着,一个竖着,涂卡顺序不一样再有空间分配也不一样这样做的目的础响是防止前后座抄袭
辽宁高考答题卡AB卷的区别,要图片?
试卷答题卡图片找不到,但是区别我知道一个选择标直不一受分记液表达题涂卡顺序是横着,一360问答个竖着,涂卡顺序不一样再有空间分配也不一样这样做的目的是防止前后座抄袭
(1)图中a、b是同一人的两幅照片,请根据图中的信息判断b图中他拿的眼镜所对应的光学元件示意图,并画在图所示的方框内; (2)如图所示.把一根质量均匀的木棒AB.从O点悬挂,当在C处挂一个重物时,要使木棒在来自图示位置平衡,请在图中画出最小的动力F.
解:(1)如图,通过眼镜片看的眼睛正财角由岁林朝办集立、放大像,并且物像在眼镜片的同侧,所以眼镜片是凸透镜.如图.(2)木棒AB从O点悬挂,当在C处挂一个重物,重物的重力作用在杠...
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