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[" 49.The radius of the earth is "6400km...

[" 49.The radius of the earth is "6400km" and "g=10m/sec^(2)." In "],[" order that a body of "5kg" weighs zero at the equator,the "],[" angular speed of the earth is "],[" Pb.PET "2000" ; Roorkee "2000" ; Pb.PMT "2001" ) "]

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