Q$2)$ Two interacting liquid level systems, each tank is $1\mathrm{.}3m$ diameter and non$-$linear resistances. The system initially at steady state with $h1=1\mathrm{.}5m,h2=1\mathrm{.}1m$ and $qi=50ga\frac{l}{m}in.$ If the inlet flowrate is suddenly increased by $50\%,$ determine and sketch the response of $h_2(t).$