Unknown macro: {latex}
\large
$$
\left( {\Delta h_
Unknown macro: {FC}
A_
Unknown macro: {float}
\rho g} \right)L_
Unknown macro: {float;lever;arm}
= \left( {\rho g\Delta h_
Unknown macro: {stock}
A_
Unknown macro: {orifice}
} \right)L_
Unknown macro: {valve;lever;arm}
$$