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evenstar
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Homework Statement
A small dam produces electrical power. The water falls a distance of 27m to turn a turbine. If the efficiency to produce electrical energy is 65%, at what rate must water flow over the dam to produce 780 kW of electrical energy?
Homework Equations
v2 = u2 + 2as
P = [tex]\tau[/tex] x [tex]\omega[/tex]
The Attempt at a Solution
I've basically been at this one on and off for a few hours, and have tied myself so completely in knots that I have no idea what I'm doing anymore. Please help someone!