Question

What is 3.2 x 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

not only do I need answers I need to know how A.S.A.P please

Answer 1

$1m=100cm\\h=3600s\\\\3.2\times10^{-4}\ m/h=3.2\times10^{-4}\times\frac{100}{3600}\ cm/s\\\\=3.2\times10^{-4}\times\frac{1}{36}\ m/s=\frac{3.2}{36}\times10^{-4}\ m/s\\\\=0.888...\times10^{-4}\ m/s=\boxed{8.889\times10^{-5}\ m/s}\\\\Answer:\boxed{b)}$