center of gravity
Số nhiều: centers of gravity
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centroidbalanceequilibriummassweightgravityphysicsmechanicsstabilitytorquemomentinertiapivotfulcrumleveragedistributionsymmetryaxisrotationoscillationpendulumforceaccelerationvectormagnitudedensityvolumegeometrycenter of massbuoyancydisplacementstaticdynamictiltleantiptoppleuprightverticalhorizontalperpendicularalignmentcentercorenucleusmidpointaveragemeanweighted averagekinematicsdynamicsenergypotential energykinetic energyfrictiontensioncompressionloadstressstrainbalance beamplumb linegyroscopestabilizercounterweight