When water is changed from a liquid to a vapor the chemical composition of the water does not change. When a water changes from a liquid to a vapor it still has the chemical composition H2O, thus making the change physical.
Answer:
Acceleration = (v Final −v Initial)/(t Final −t Initial). Where v stands for velocity and t stands for time. In algebraic notation, the formula can be expressed as: a=Δv/Δt; Acceleration can be defined as the rate of change of velocity with respect to time.
About 60 to 64 because 833/13=64
