Two power lines run parallel for a distance of 222 m and are separated by a distance of 40.0 cm. if the current in each of the two lines is 140 a and if they run in opposite directions, determine the magnitude and direction of the force each wire exerts on the other.

Ihave no idea sorry

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.

Rain is pulled by gravity which is a non contact force