1-31 할리데이 11판 솔루션 일반물리학

$$\begin{aligned} \Ans&=0.257\ut{kg/day}\\ &=0.257\ut{kg/day}\cdot\frac{10^6\ut{mg}}{1\ut{kg}}\cdot\frac{1\ut{day}}{24\ut{h}}\cdot\frac{1\ut{h}}{60\ut{min}} \\ &=\frac{6425}{36}\ut{mg/min}\\ &\approx178.47222222222223\ut{mg/min}\\ &\approx178\ut{mg/min}\\ \end{aligned}$$