PLEASE HELP ITS TIMED WILL GIVE POINTS A packing crate of mass m is pulled across the floor at a constant velocity
by means of a rope attached to the front of the crate. The rope makes
an angle of θ with the floor. The coefficient of kinetic friction between
the floor and the crate is µk. What value of θ will make the tension in the
rope a minimum?

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