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[" Eight spherical rain drops of the sam...

[" Eight spherical rain drops of the same mass and radius are falling down "],[" with a terminal speed of "6cm-s^(-1)" .If they coalesce to form one big drop,"],[" what will be the terminal speed of bigger drop? (Neglect the buoyancy of "],[" the air) "],[[" 1."5cms^(-1)," 2) "6cms^(-1)," 3) "24cms^(-1)," 4) "32cms^(-1)]]

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