Which statement best describes the relationship between atoms and nuclear forces? (2 points) a Strong nuclear forces hold the nucleus of an atom together. Weak nuclear forces hold neutrons and electrons together. b Weak nuclear forces hold the nucleus of an atom together. Strong nuclear forces are responsible for breaking down atoms. c Weak nuclear forces hold small atoms together. Strong nuclear forces hold large atoms together. d Strong nuclear forces hold the nucleus of an atom together. Weak nuclear forces are involved when certain types of atoms break down.

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.

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