Water rises in a thin tube by $h = \dfrac{2T}{\rho g r}$, with $T = 0.0728\ \text{N/m}$, $\rho = 1000\ \text{kg/m}^3$ and $g = 9.8\ \text{m/s}^2$. What is $h$ for a tube of radius $50\ \mu\text{m}$?