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//Variable declaration:
Dz = 3000 //Height (ft)
V0 = 500000 //Flowrate of water (gal/min)
n = 30 //Turbine efficiency (%)
m = 0.3048 //Meters in a feet
m3 = 0.00378 //Meters-cube in a gallon
g = 9.8 //Gravitational acceleration (m/s^2)
gc = 1 //Conversion factor
MW = 10**(-6) //Megawatt in newton-meter-per-second
//Calculations:
V1 = (V0*m3)*1000.0/60.0 //The mass flow rate of the water in kilograms/second (kg/s)
DPE = V1*g*Dz*m/gc*MW //The loss in potential energy (MW)
AP = n/100.0*DPE //The actual power output (MW)
//Result:
printf ("The power generated by the lake located is : %.1f MW",AP)
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