Mark all of the following that could be true of an object in free fall. a. The particle may be moving with constant speed. b. The object may be moving upward. c. The object may be moving downward. d. The object may be momentarily at rest. e. The particle may be moving with an acceleration that is not constant.

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?