Why do cities on the east coast have warmer climates than cities on the west coast at similar latitudes?

The air has to travel over the land mass warming up as it travels all east side.

The East coast is warmer because it is affected by the warm gulf stream current, while the West coast cities are cooler because they are affects by the cool California Current.

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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.