A45,000 kg train moves at a velocity of 12 m/s north. it collides with a 50,000 kg train moving 10 m/s south. if the collision is inelastic, what is the final motion of the trains?

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?

Acar is traveling 35 mph on a smooth surface . if a balanced force is applied to the car what happens?

Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians?