Desde el balcón de un edificio se deja caer una bola de boliche y llega a la planta baja en 4 s. a) ¿Desde qué piso se dejo caer, si cada piso mide 3 m? (redondea tu respuesta al entero más cercano)

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

What causes the development of most clouds and precipitation in the atmosphere?