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Find the weight of the atmosphere around...

Find the weight of the atmosphere around the earth (take the radius of earth as 6400km)

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`"Weight of atmosphere"="Atmoshpheric pressure"xx"Surface area of the earth"`
`=1.01xx10^(5)xx4xx(22)/(7)xx6400xx6400xx1000xx1000[because"Surface are of sphere"4pi^(2))]`
`=1.01xx10^(5)xx4xx(22)/(7)xx4096xx10^(10)=52007.49xx10^(15)=0.52xx10^(10)kg`
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