(2012•东城区一模)如图所示,物体从A处开始沿光滑斜面AO下滑,又在粗糙水平面上滑动,最终停在B处.已知A距水平面O
2024-07-261个回答
一个质量为M的物体,沿着粗糙的斜面匀速下滑,它总共受到_____个力的作用,除重力之外,其余外力的合力大小等于_____
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经过点(5,1)的反比例函数y=k/x(k≠0)的图象,利用图像求;1. 当x≥1时,y的取值范围2.当y>-2时,x的
2024-07-261个回答
如图所示,用轻质细杆连接的A、B两物体正沿着倾角为θ的斜面匀速下滑,已知斜面的粗糙程度是均匀的,A、B两物体与斜面的接触
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直流电路如图所示,试用叠加原理求各电阻支路中的电流 I1、I2、I3、I4
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利用戴维宁定理求图中电路如图:其中z1=sL ,z2=1/sC,答案上的内阻和等效电源是怎么求出来的?这样的电路应该怎么
2024-07-261个回答
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2024-07-261个回答
利用函数y=-x2+2x-3的图象,求方程-x2+2x-3=-8的近似值
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We will put your story and photo on our Friendship Page so _
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and so began my friendship with Mr.Burns
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the friendship between china and the us has a long history是什
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he finds friendship and ___from others and always has confid
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The holy passion of Friendship is of so sweet and steady and
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Knowledge is knowing a fact. Wisdom is knowing _____________
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Not knowing what to do, he went to his parents for help.为何要用
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It's useful knowing several languages.为何用knowing不用to know
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some predators are born knowing what to do..这个knowing what t
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你能帮帮他们吗
2024-07-273个回答
Peter _____ the papers he was marking and reached for his ci
2024-07-271个回答
一般现在时造句用一般现在时,现在进行时,一般过去时,一般将来时造句,各2句话.水平要初一水平就行肯定句 要简单一点的
2024-07-271个回答
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将足量的铁粉加入100毫升某浓度的硫酸铜溶液中,过滤、烘干,称量所得固体,其质量增加了1.6克,则反应...
2024-07-263个回答