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[" 43.The beam and pans of a balance hav...

[" 43.The beam and pans of a balance have negigible mass.An objact weighs W,when placed in one pan "],[[" and W/ when placed in the other pan.The weight W of the object is: "," (B) "sqrt((W_(1)+W_(2)))," (C) W.2+ Wz^ 2"," (D) (W) "," (4) "12],[" (A) "sqrt(W_(1)W_(2))," Trie rod is in "]]

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