A dog is chasing a rabbit at 20 m/s. The dog trips and falls but is not hurt. 10 poi It took the dog 2 s to come to a complete stop. What is the acceleration
of the dog?
-10 m/s/s
O 10 m/s/s
40 m/s/s
-40 m/s/s

Need only answer if you think you know it

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?

What is a subatomic particle with a negative charge and very little mass?