Water falling from a \( 60 \mathrm{~m} \) high is to be used for generating electric power. If \...
Water falling from a \( 60 \mathrm{~m} \) high is to be used for generating electric power. If \( 9 \times 10^{5} \mathrm{~kg} \) of water falls per hour and half the gravitation potential energy can be converted into electric energy. How many math xmlns=http://www.w3.org/1998/Math/MathMLmn100/mn/math watt bulbs can be light? \( \left(g=10 \mathrm{~m} / \mathrm{s}^{2}\right) \)
a. math xmlns=http://www.w3.org/1998/Math/MathMLmn7500/mn/math
b. math xmlns=http://www.w3.org/1998/Math/MathMLmn7700/mn/math
c. math xmlns=http://www.w3.org/1998/Math/MathMLmn1800/mn/math
d. math xmlns=http://www.w3.org/1998/Math/MathMLmn9000/mn/math
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