A small sandbag is dropped from rest from a hovering hot-air balloon.

Explain what happens at the saturation point when adding salt to water at room temperature.

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?

How many neutrons does plutonium -196 with an atomic number of 78.