You have a bat-like echolocation system on your car, which emits a 20,000-hz frequency sound that returns to the car in 0.18 s after being reflected by another stationary car. the car is moving at 14 m/s toward the stationary car. find the distance that the moving car travels during the 0.18 s. express your answer with the appropriate units.

[05.02] what is the best explanation of the kinetic molecular theory as it relates to the energy of the molecules in the states of matter? (1 point) the molecules in a gas have greater kinetic energy than those in a liquid, which in turn have greater kinetic energy than the molecules in a solid. kinetic energy cannot be created nor destroyed, and, as a result, all states of matter have the same kinetic energy. the molecules in a gas have greater kinetic energy; therefore, they are more tightly packed than the molecules in either a liquid or a solid. the molecules in gases and liquids, in constant motion, have greater kinetic energy than those in a solid, which do not move or vibrate because their position is fixed.