After the big bang, atoms in gas clouds experienced a greater gravitational pull to each other than atoms in other regions of the universe. Which two statements are scientific facts that explain this phenomenon?

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Which transition by an electron will release the greatest amount of energy? oa ob oc od

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.