Two bullies want to get you. The three of you are on a narrow path that you can't get off. And ... you're in the middle. They're separated by 300 meters when they start running toward you. They each run at 6 m/s, but you can
run at 10 m/s. If you initially start out right in front of one of them and run back and forth the full distance between
bullies, how much distance will you have covered by the time they finally catch you?
m.
730
300
0 +

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?