$$\left. \begin{array} { l } { : 0.3 \times 0.04 \times 0.003 \times 1400 } \\ { : 0.3 \times 0.04 \times 0.003 \times 400 } \\ { 0.0144 } \\ { 0.144 } \\ { \text { ( \right.$$
