I'm kinda confused, I understand what came first in the formation but how do we know which part came first in the formation of our solar system?

Ain is , is 's of ? 0.62 0.79 1.27 1.50

What is the gravitational attraction between a dating couple whose centers of mass are 0.630 m apart if the boy weighs 715 n and the girl weighs 465 n?

Imagine that the rightward current flows in the rod for a short time. as a result, what will the net charge on the right and left ends of the rod become? left end negative and right end positive left end negative and right end negative left end negative and right end nearly neutral left end nearly neutral and right end positive both ends nearly neutral