Imagine that a white car is moving 5km/he west when a yellow car moving 10 km/hr west collides with it from behind. What happens to each car kinetic energy?

In a system, when potential energy decreases, then entropy also decreases. true false

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up