James and Toby are running in a 100 m race. James' velocity is 10 m/s to the right and Toby's velocity is 8 m/s to the right. Which of the following statements is true? James will finish the race before Toby. In a position time graph, James' slope would be steeper than Toby's slope. If Toby runs at a constant velocity, the sizes of the arrows in a vector graph will all be the same. All of the above.

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?