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Find the percentage decrease in the weig...

Find the percentage decrease in the weight of the body when taken to a depth of `32 km` below the surface of earth. Radius of the earth is `6400 km`.

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Weight of the body at depth d is
`mg.=mg(1-d/R)`
% decrease in weigt `=(mg-mg.)/(mg)xx100`
`=d/Rxx100=32/6400xx100=0.5%`
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