The bolts on a cylinder head of an engine require a torque of 95 N*m. If a wrench is 28 cm (or 0.28 m) long, what force perpendicular to the wrench must the mechanic exert at its end?

The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a. is a south pole because the field hnes spread out from this end b. a north pole because the field lines spread out from this end c. a nouth pole because the field lines enter the magnet at this end d. is a north pole because the field lines enter the magnet at this end