PLEASE HELP NO LINKS An object's center of mass is .

Select all that apply.
An object's center of mass is .

Select all that apply.
the point about which the net torque is zero
the point about which an unconstrained rotation occurs
the geometric center of the object
the mass-weighted center of the object
the point about which the angular momentum is zero

Answerthe distance between the two ends of the galaxy is 150,000 light years;

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