In Guardians of the Galaxy, Vol. 2,
Gamora picks up a gigantic gun that had been torn off of Nebula's ship. Gamora then carried the gun towards Nebula, while discharging a large amount of ordinance towards Nebula. The gun itself must have weighed more than one ton. And then the discharge of the ordinance must have produced a massive backward pushing force. No human could handle either the lift OR the discharge.
How is Gamora strong enough to do this? I know that Thanos enhanced his daughters in order to make them better fighters. But is there also a more specific answer?