一道英文物理题,牛人请作答!Two rods of equal lengths and cross-sectional areas but of different materials are placed in thermal contact as shown in Figure 2.The thermal conductivity of Q is half that of P.The outer end of P is at 0o C and

一道英文物理题,牛人请作答!Two rods of equal lengths and cross-sectional areas but of different materials are placed in thermal contact as shown in Figure 2.The thermal conductivity of Q is half that of P.The outer end of P is at 0o C and 一道英文(sat2)物理题 帮忙作一道英文的矩阵的题,(Factory output and inventory )A company produces two products,240 watt light globes and 40 watt light globes in two factories.Matrix A describesoutput (measured in thousands) for a month from each factory,with ro 一道物理题, 一道物理题, 一道物理题, 一道物理题, 一道物理题, 问一道物理题（电学的）如图是电热毯的示意图,R为电阻丝,R与Ro串联.若电热毯上标有“220V 100W”字样求（1）若要求在保温时电流对Ro的功率为60W,求Ro的阻值.（2）当Ro=R时,电阻丝功率多大图 一道哲学题请作答! RO 关于一道电学方面的物理题.大家看图吧``ABD三个我都知道怎么回事,不过C选项我不知道如何判断,因为在RO变大的时候,L3+RO这条线路的总电阻增大,分压也会变大,可是再观察L3+R0这条线路,RO电阻 初中物理题求作答给好评!7,8题 初中物理题求7题作答给好评! 解一道初中物理题 求一道物理题 一道物理题,求思路 求问一道物理题