论文部分内容阅读
一、理解浮力的实质,掌握公式F_浮=p_液gV_排应用的前提条件例1一桥墩在河水中的体积为20米~3,其所受浮力多大?误解:F_浮=p_液gV_排=1.0×10~3千克/米~3
First, understand the essence of buoyancy, master the formula F_ float = p_ liquid gV_ row preconditions for application Example 1 The volume of a pier in river water is 20m~3, how much buoyancy it receives? Misunderstanding: F_float = p_Liquid gV_row = 1.0×10~3kg/m~3