A liquid flows through a horizontal pipe with a radius of r$=0\mathrm{.}01$m and a length of L$=2$m$.$ The pressure difference between the two ends of the pipe is $$P$=2000$Pa$.$ If the viscosity of the liquid is $=0\mathrm{.}001$Pa$.$s$,$ what is the volumetric flow rate Q$?$

$32$

$$

a$.$

$1\mathrm{.}2610^4$ m$^3/$s

b$.$

$3\mathrm{.}1410^4$ m$^3/$s

c$.$

$6\mathrm{.}2810^4$ m$^3/$s

d$.$

$2\mathrm{.}0010^4$ m$^3/$s