金陵中学27届物理复赛练习题(7)图11.质量不M的薄壁圆管以速度v0沿静止不动板P的水平面作无滑动地滚动落到以速度u入同一方向运动的水平传输带上(如图1所示)管与带之间滑动摩擦因数为μ问:(1)进入带上后经过时间t1为多少时管开始沿带作无滑动地滚动(2)求在时间t1内管动能的变化(3)由于管与带之间存在摩擦则在时间t1内释放多少热量2.长l=0.1m轻杆两端各固定一个同样的小重球组成哑铃将
金陵中学27届物理复赛练习题(6)图1平面P和Q相交成直角平面P与水平面成角α如图1所示从平面P上空间某一点A自由落下一个小球小球与两平面的碰撞是完全弹性的问在什么条件下球又回到A点绘出一条可能的轨迹2.如图2所示质量为M的圆柱位于可动的水平平面与固定的化解为α的斜面之间圆柱与水平面之间的动磨擦系数为μ1与斜面之间的动摩擦系数为μ1要使水平面向左匀速运动为此对它施加一个水平向左多大的外力图2
金陵中学26届物理复赛练习题(3)Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewords
金陵中学27届物理复赛练习题(2)金陵中学26届物理复赛练习题(2)答案Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsPAGE Created with an e
金陵中学26届物理复赛练习题(4)金陵中学26届物理复赛练习题(4)答案Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewords
金陵中学27届物理复赛练习题(9)3.厚度为d的两块平面层均匀带电其电荷体密度分别为ρ与-ρ带电量为-e质量为m的粒子以速度v飞向带正电层速度方向与层面方向平角为α(如图所示)求:(1)速度为何值时粒子到不了带负电层(2)在这种情况下粒子经过多少时间并离A点多远离开正电层板之间的距离为d其尺寸为b×b. 体一定上升到毛细管顶部3.Created with an evaluation copy
金陵中学27届物理复赛练习题(8)扬声器内有一个纸盒纸盒正面的面积S=300cm2质量m=5g共振频率ν0=50Hz如果把扬声器安装在容积V0=40L封闭音箱的壁上如图所示则纸盒的共振频率多大假设当纸盒振动时箱内空气的温度不变Created with an evaluation copy of Aspose.Words. To discover the full versions of ou
金陵中学27届物理复赛练习题(5)金陵中学27届物理复赛练习题(5) Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewords
金陵中学27届物理复赛练习题(1)金陵中学27届物理复赛练习题(1)答案Created with an evaluation copy of Aspose.Words. To discover the full versions of our APIs please visit: :products.asposewordsPAGE Created with an e
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