6. A student climbs to the top of the gym and drops a baseball to the ground below. A physics studentstanding nearby has a motion sensor and determines that the baseball hit the ground Vrith a velocity of 17 m/s. If you ignore air resistance, how long was the baseball falling through the air?

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?