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In a sub - stage lunch of a satellite, t...

In a sub - stage lunch of a satellite, the first stage brings the satellite to a height of 150 km and the second stage gives it the necessary critical speed to put . It in a circular orbit around the Earth , which stage requires more expenditure of fuel ?
(Given , `M_(E)=6.0xx10^(24)kg,R=6.4xx10^(6)m,G-6.67xx10^(-11)Nm^(2)kg^(-2)).`

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