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[" 6.The mass of a spaceship is "1000kg"...

[" 6.The mass of a spaceship is "1000kg" .It is to be launched "],[" from the earth's surface out into free space.The value "],[" of "g" and "R" (radius of earth) are "10m/s^(2)" and "6400km],[" respectively.The required energy for this work will be "],[[" (a) "6.4times10^(8)" Joule "," (b) "6.4times10^(9)" Joule "],[" (c) "6.4times10^(10)" Joule "," (d) "6.4times10^(11)" Joule."],[" 011"]],[" If the earth stops rotating,then change in the weight "]

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