Answer
$3.15\times10^{-5}\ km/hr$
Work Step by Step
$\frac{8.75\mu\ m}{s}\times\frac{1\times10^{-6}m}{1\mu\ m}\times\frac{1km}{1\times10^3m}\times\frac{60s}{1min}\times\frac{60min}{hr}=3.15\times10^{-5}\ km/hr$
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