When a driver presses the brake pedal, his car can stop with an acceleration of -5.4m/s^2. how far will the car travel while coming to a complete stop if its initial speed was 25 m/s?

An object has a weight of 500 on earth what is the mass of this object

What properties of a moving object are used in determining the object's energy of motion

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.