Suppose carts on-air track have the same mass. They move toward each other at the same speed and stick together when they collide (called a perfectly inelastic collision.) Describe the motion after the collision.

An unknown substance has a melting point of 1064 ∘c, is insoluble in water, conducts electricity as a solid, and is hard. given these properties, which of the following are possible identities for the unknown substance? check all that apply. view available hint(s) check all that apply. sio2 f2 au kbr

Plss anybody know how to do this? ? i need the answers from a through d

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?