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libngf libnkf libnmserver libnpa libnscd libntlm liboauthcpp libodb liboglappth libomxil-bellagio liboop libopendrone libopennet libopkele libosinfo libosip2 libosl libosmo-dsp libosso libotf libottery libp11 libp5glove libpafe libpar2 libpciaccess libpgm libphidget libpinyin l...
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【解析】【解析】小球沿圆环缓慢上移可看做平衡状态,对小球进行受力分析,小球受重力G、拉力F、支持力N三个力,受力平衡,作出受力分析图如下:AFBNGF由图可以知道 △OBF∼△GFB 即G/R=F/(BA)=N/R 计算得出:F=(BA)/R⋅mg ABmgN=G=mg因为cosθ=2/R故 F=2mgcosθ=√3mg故本题选:A【物体的受...
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Guangdong, China Brand Name LCD TV accessories Model Number XSLB-00002/8518/1pcs Mounting Type LCD TV accessories repair Description Speakers Rated Voltage 6Ω/10W Frequency 6Ω/10W Application LCD TV Material Other Output Type Other Voltage Range ...
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Vexta FBLM5120W-GFB22 Brushless DC Motor w/ GFB5G10 Gearhead working Vexta FBLM5120W-A Brushless DC Motor 120W ! WOW ! Vexta FBLM5120W-A | Tested with 12 month warranty VEXTA FBLM44OC-GF FBLM44OCGF VEXTA FBLD75CW FBLD75CW Vexta FBLD75CW Driver Brushless Oriental Motor DC 200...