3. se tira una piedra verticalmente hacia abajo con una velocidad inicial cuya magnitud es de 8 m/s. calcular: a) ? qué magnitud de velocidad llevará a los 4 segundos de su caída? b) ? qué distancia recorre en ese tiempo?

Apossible long term health effects of stress would be work

One splits the atoms and molecules  the other combines them

Ithink it takes sixty votes to approve a supreme court justice

Sounds propagates through some kind of medium. usually it's air, but it goes just as well through solid objects like walls, windows etc. a soundwave will compress the (air)molecules in front of it, and if this increased density wave hits your ears, you register it as sound. solid objects like walls are a lot denser than air, this means that they will damp a wave, but also carry it easier.