问题
问答题
(1)图1中天平的读数是______g.
(2)图2中电能表的读数是______.
(3)如图3悬挂的小球处于静止状态,画出他所受拉力的示意图.
答案
(1)天平读数为50g+10g+2.4g=62.4g;
故答案为:62.4.
(2)电能表读数为2818kW?h+0.7kW?h=2818.7kW?h;
故答案为:2818.7kW?h.
(3)拉力从小球的重心竖直向上画,标出符号F,如图:
(1)图1中天平的读数是______g.
(2)图2中电能表的读数是______.
(3)如图3悬挂的小球处于静止状态,画出他所受拉力的示意图.
(1)天平读数为50g+10g+2.4g=62.4g;
故答案为:62.4.
(2)电能表读数为2818kW?h+0.7kW?h=2818.7kW?h;
故答案为:2818.7kW?h.
(3)拉力从小球的重心竖直向上画,标出符号F,如图: