A system has both thermal energy and chemical potential energy. According to the law of conservation of energy, which statement describes the total
energy of this system?
A. It will decrease as thermal energy is transferred out of the system.
B. It will decrease over time as chemical potential energy is
transformed into thermal energy.
C. It will increase as thermal energy is created from chemical
potential energy.
D. It will remain constant because the total amount of thermal energy
plus chemical potential energy stays the same.

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

Answer choice a test prep

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