1. The problem statement, all variables and given/known data A waterfall has a change in elevation of 4.4*10^2 m. When the water has fallen 12% of its way to the bottom, its speed is 93m/s. Neglecting air resistance and fluid friction, determine the speed of the water at the top of the waterfall. 2. Relevant equations Et1=Et2 Ek1+Eg1=Ek2+Eg2 1/2m(v1)^2+mgh1=1/2m(v2)^2+mgh2 3. The attempt at a solution g=9.81 N/kg v1=? v2=93m/s h1=440m h2=440m*0.88=387.2m 1/2m(v1)^2+mgh1=1/2m(v2)^2+mgh2 1/2(v1)^2+gh1=1/2(v2)^2+gh2 1/2(v1)^2+(9.81)(440m)=1/2(93)^2+(9.81)(387.2m) Am I doing it right so far?