If a magnet is broken into two pieces, what happens to the magnetic poles? one piece will have a north pole, while the other piece will have a south pole. each piece will still have a north pole and a south pole. each piece will have only a north pole. both pieces will no longer have any magnetic poles.

Plss anybody know how to do this? ? i need the answers from a through d

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.