Question 1097811
{{{h=12+2-6=8}}} at 2 PM
{{{I(h)= (12h-h^2)/36=h(12-h)/36}}}
{{{I(8)=8(12-8)/36=8*4/(9*4)=8/9}}}
{{{T(I)=sqrt(5000I)}}}
{{{T(8/9)=sqrt(5000(8/9))=sqrt(5000*8/9)=sqrt(40000/9)=200/3=about}}}{{{highlight(67)}}} .