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What is 3.2 × 10−4 m/h in centimeters per second?   A. 8.889 × 10^−6  cm/s   B. 8.889 × 10^−5  cm/s   C. 1.152 × 10^−5  cm/s   D. 1.152 × 10^−7  cm/s



Answer :

[tex]1m=100cm\\1h=3600s\\\\-----------------------------\\\\3.2\times10^{-4}\ m/h=3.2\times10^{-4}\times\frac{100cm}{3600s}=3.2\times10^{-4}\times\frac{1}{36}\ cm/s\\\\\approx0.08888...\times10^{-4}\ cm/s=8.889\times10^{-6}\ cm/s\\\\Answer:\fbox{A.}[/tex]

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