What is the correct answer?
4
A. 2A × √H₁/Cd × a × √(2g)
B. 2A × √H₂/Cd × a × √(2g)
C. 2A × (√H₁ - √H₂)/Cd × a × √(2g)
D. 2A × (√H3/2 - √H3/2)/Cd × a × √(2g)
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