Enunciado: Una bola se lanza verticalmente de la parte superior de un edificio con una velocidad inicial de 25 m/s. La bola impacta al suelo en la base del edificio 7 segundos después de ser lanzada. (Marque la respuesta correcta) ¿Qué altura subió la bola (medida desde la parte superior del edificio)?
a) 19.6 mb) 12.75 m c) 31.88 m d) 40 m e) 20 m

Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?

In what direction does the medium move relative to the direction of the wave? explain.

The plum pudding model of the atom state that ?