早教吧作业答案频道 -->物理-->
一根弹簧长50cm,一段固定,另一端可挂重物,通常所挂物体体质每增加1kg,弹簧伸长2cm,则弹簧长度为67cm是,kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
题目详情
一根弹簧长50cm,一段固定,另一端可挂重物,通常所挂物体体质每增加1kg,弹簧伸长2cm,则弹簧长度为67cm是,
kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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▼优质解答
答案和解析
挂了8.5kg物体
看了 一根弹簧长50cm,一段固定...的网友还看了以下:
关于物体的重力,下列说法正确的是()A物体的重力就是地球对物体的吸引力B物体静止时,对水平支持物的 2020-06-05 …
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在如图所示的轻质支架上的C点挂一重一百牛的物体,已知AB=40厘米,AC=60厘米,BC=80厘米 2020-06-11 …
如图所示,在杠杆的a处悬挂两个相同的钩码,若使杠杆在水平位置平衡,可以采取的措施是()A.只能在a 2020-07-11 …
如图所示,一小球用细绳悬挂于O点,将其拉离竖直位置一个角度后释放,则小球以O点为圆心做圆周运动,运动 2020-11-01 …
如图所示,一根重100N的均匀硬棒AB,A端搁在矮墙上,若在它的中点C上挂100N的重物,要使硬棒保 2020-11-11 …
把一个薄板状物体悬挂起来,静止时如图所示,则对于此薄板状物体所受重力的理解,下列说法正确的是()A. 2020-12-01 …
弹簧自重对伸长量具体如何影响?为什么呢?是不是有了自重提起时手要施加一定的拉力平衡弹簧重力所以要伸长 2020-12-02 …
如图所示,直角棒ABO自重不计,可绕O点自由旋转.已知AB=30cm,OB=40cm,现在OB的中点 2020-12-02 …
如图所示.均匀杆AB每米重为30N.将A端支起.在离A端0.2m的C处挂一重300N的物体,在B端施 2020-12-31 …