Question $6$

$7\mathrm{.}5/7\mathrm{.}5$ pts

An object with a size $r_0$ has a Reynolds number of $2$ when it moves through a fluid at a speed $v_0.$ What is the Reynolds number for an object with a size $2r_0$ moving through the same fluid at a speed $\frac{v_0}{2}?$

$4$

$0\mathrm{.}25$

$8$

$0\mathrm{.}5$

$1$

$2$