1. The problem statement, all variables and given/known data 2. Relevant equations KE=(0.5)mv^2 PE=mgh 3. The attempt at a solution a.) The tanks volume is 20m^3. I then multiply that by the density to get the mass of the water, which is 20,000 kg. Apply that into PE=mgh for gravitational potention (20,000)(9.8)(50)=9,800,000 -Is everything in the right units?- b.) I have no idea how to do this part. If I can get some help with part b, that would be greatly appreciated.