[今日更新]河南省新乡市2024年八年级学业水平调研抽测.物理试卷答案

[今日更新]河南省新乡市2024年八年级学业水平调研抽测.物理试卷答案试卷答案,我们目前收集并整理关于[今日更新]河南省新乡市2024年八年级学业水平调研抽测.物理试卷答案得系列试题及其答案，更多试题答案请关注微信公众号：考不凡/直接访问www.kaobufan.com(考不凡)

[今日更新]河南省新乡市2024年八年级学业水平调研抽测.物理试卷答案试卷答案

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(4)实验中根据两电表读数作出如图丁所示的图线(坐标均为国际单位)已知图线的斜率为k,则圆率为k,则圆柱体的阻值Rx=中所给物理量符号表示).(用题

1.在安徽南部地区分布着粉墙黛瓦、刀笔生姿的民居建筑,是中国传统民居建筑的一个重要流派,也称徽派民居,如图甲所示,屋顶结构可简化为如图乙所示模型,瓦片静止在倾斜橡子上。若瓦片与橡子间的动摩擦因数为u,设最大静摩擦力等于滑动摩擦力,则橡子与水平面的最大夹角θ满足的关系式为A.tan0=μA.tanθ=.cos=μB.cosθ=C.=1D.=1

A.同一光电管对不同颜色的单色光有各自不同的截止频率B.图二中如果乙光是黄光,则丙光可能是红光C.由图二可判断,丙光激发的光电子的最大初动能最大D.在图一中电流表G的电流方向可以是b流向a