Correct answer only ! i cannot retake this and i need all correct answers !

in a magnet, what type of poles are attracted to each other?

To travel at constant speed, a car engine provides 24kw of useful power. the driving force on the car is 600n. at what speed does it travel?

How much force must a locomotive exert on a 12840-kg boxcar to make it accelerate forward at 0.490 m/s2?

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration