How does the way in which the solar system formed explain the orbits

Which property of fossils allow scientists to determine the relative rock ages..

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?

What part of the ear is names after tools, such as the hammer and the anvil?