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[" 45.(D) "735m" ."],[" 45.A "5000kg" ro...

[" 45.(D) "735m" ."],[" 45.A "5000kg" rocket is set for vertical firing.The "],[" exhaust speed is "800m/s" the amount of gas ejected "],[" acceleration of "20ms^(-2)" .The amount of gas ejected "],[" per second to supply the needed thrust will be: "],[(g=10m/s^(2))" : "],[(g=10m/s^(2))" : "]

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