1.

Express a speed of 360 cm \[\text{h}{{\text{r}}^{-\text{1}}}\] in km \[{{\text{s}}^{-\text{1}}}\].

A.  \[\text{1}{{0}^{-\text{6}}}\]              
B.  \[\text{1}{{0}^{-\text{5}}}\]
C.  \[\text{3}.\text{6}\times \text{1}{{0}^{-\text{6}}}\]                     
D.  \[\text{36}0\times \text{1}{{0}^{-\text{5}}}\]
Answer» B.  \[\text{1}{{0}^{-\text{5}}}\]


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