Wes stands on the roof of a building, leans over the edge, and drops a rock. lindsay waits 1.20 s after wes releases his rock and throws her own rock straight down at 21.0 m/s. both rocks hit the ground simultaneously. 1) calculate the common height from which the rocks were released. ignore the effects of air resistance. (express your answer to three significant figures.)

The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a.is a south pole because the field hnes spread out from this end b.a north pole because the field lines spread out from this end c.a nouth pole because the field lines enter the magnet at this end d.is a north pole because the field lines enter the magnet at this end