How is the frequency of a transverse wave determined? by determining the distance from one trough to the next trough

by counting the number of compressions that pass by in a set amount of time

by finding the distance from the rest position to the point of highest displacement

by measuring the number of crests that pass a point in a certain amount of time

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.