论文部分内容阅读
例1.某同学在称一物体的质量时,右盘所放的砝码及游码的位置如下图所示时,天平平衡,则该物块的质量应是()
Example 1. When a student classifies the mass of an object, the position of the weight and the code on the right-hand disk are as shown in the figure below. When the balance is balanced, the mass of the mass should be ()