Answer
It takes about 0.010 s for a nerve impulse that is generated when my fingers touch a hot object to travel to my brain.
Work Step by Step
We know that
$t=\frac{length}{speed}$
We plug in the known values to obtain:
$t=\frac{1.0m}{10^2m/s}$
$\implies t=10^{-2}s=0.010s$
