Physics

Physics, 28.10.2019 10:31, sophie5988

An astronaut having mass 320 kg with equipment included is attempting an untethered space walk. the astronaut is initially at rest with respect to the nearby spacecraft, but discharges 30.0 g of nitrogen gas at 900.0 m/s from a portable propulsion unit. how fast is the astronaut moving after doing that?
84 m/s

27 m/s

0.36 m/s

0.084 m/s

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Physics, 03.08.2019 03:30, Ben2752

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