Object 1: A skateboard with unbalanced forces Object 2: A bicycle with balanced forces Which statement is true about the objects?

What happens to energy in an open system?

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma

One similarity and one difference between an element and a mixture of elements