The length of the needle floating on water is 2.5cm.hiw much minimum force, in the weight of the needle will be needed to lift the needle above the surface of water? Surface tension of water is 7.2*10
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answer of question The length of the needle floating on water is 2.5cm.hiw much minimum force, in the weight of the needle will be needed to lift the needle above the surface of water? Surface tension of water is 7.2*10
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