Si una pelota de tenis golpeada por un jugador sale disparada de su raqueta a una velocidad inicial de 32.5 m/s con un ángulo de 290 respecto al eje horizontal

cual es la altura máxima que alcanzará la pelota y la distancia horizontal a la que llegará la pelota.

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?