Where is the south pole of the bar magnet, based on the magnetic field lines shown?
A. On the left end
B. On the right end
C. On the bottom edge
D. On the top edge

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.