A 3.06 kg particle has the xy coordinates (-1.51 m, 0.950 m), and a 5.93 kg particle has the xy coordinates (0.366 m, -0.969 m). Both lie on a horizontal plane. At what (a) x and (b) y coordinates must you place a 4.53 kg particle such that the center of mass of the three-particle system has the coordinates (-0.922 m, -0.833 m)

Which statements identify what astronomers currently know and think will happen with our universe? check all that apply. the big bang produced dark energy, which accounts for some of the energy needed to expand the universe. the vastness of space may contain a type of matter known as "dark matter." the universe is currently shrinking at a rapid rate. the universe is currently expanding at an accelerating rate. the big bang theory explains all the energy and matter discovered by scientists.