How many Giardia Lamblia cysts will remain in chlorinated water at 15 0C and pH = 7 if we chlorinate the water for 25 minutes with 2.5 mg/L of chlorine and the chlorine demand is 1.5 mg/L? Note: Use tables 7-3 or 7-4 or 7-5. Consider that the initial cyst concentration is 10 cysts/100 mL.

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?  

Sorry i dont understand the question can you rephase it?