An astronaut is on a spacewalk outside her ship in gravity-free space. initially, the spacecraft and astronaut are at rest with respect to each other. then, the astronaut pushes to the left on the spacecraft and the astronaut accelerates to the right. which one of the following statements concerning this situation is true? the velocity of the astronaut increases while she is pushing on the spacecraft

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