What is the correct answer?
4
A. Q = (2/3) Cd × b × √(2g) × (H2 - H1)
B. Q = (2/3) Cd × b × √(2g) × (H2 1/2 - H1 1/2)
C. Q = (2/3) Cd × b × √(2g) × (H2 3/2 - H1 3/2)
D. Q = (2/3) Cd × b × √(2g) × (H2 2 - H1 2)
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