What’s the efficiency of a car that uses 400,000 J of energy from gasoline to make 48,000 J of kinetic energy

Edit the post so i can see the letters for each answer, and increase the points required so i'd be able to answer it.

Aand b antarctica is a north pole.  field lines enter earth near the north pole.the magnetic pole near antarctica is a north pole.compasses point toward a magnetic pole that is a north pole.field lines circle earth from east to west.a compass can lead a hiker to the geographic north pole.

D. the index of refraction of the second medium is lower.