contestada

Water flows over a section of Niagara Falls at a rate of 1.20 × 10^6 kg/s and falls 50.0 m. What is the power of the waterfall?
a. 6.00 × 10^7 W
b. 6.00 × 10^5 W
c. 6.00 × 10^3 W
d. 6.00 × 10^9 W