In a crash test, a 2,500 kg car hits a concrete barrier at 1.3 m/s2. if the car strikes the barrier with a force of 3,250 n, how much resistance force does the barrier provide? n this pair of forces is an example of newton's law of motion.

3250 N in the opposite direction

Explanation:

According to Newton's third law of motion:

"Each action has an equal and opposite reaction"

To understand it better:  

When two bodies interact between them, appear equal forces and opposite senses in each of them.  For example, if a body A exerts a force on another body B, it performs on A another force with the same magnitude and in the opposite direction.

Hence, this law states that for each force acting on a body, ther is a force of equal intensity but in the opposite direction on the body that produced it.

In this sense if the car hit the concrete barrier with a force of 3250 N, the concrete barrier will exert a force of -3250 N on the car (where the negative sign indicates the force is acting in the opposite direction).

the higher the current the higher the mag field around it the higher the influence on the compass