William would like this bar magnet to move back and forth from left to right using attraction. what objects does he need to place at each end to make it move? • Place the South Pole of another magnet next to the South pole, and the North Pole of another magnet next to the north pole.

• Place the North Pole of another magnet next to the South pole, and the South Pole of another magnet next to the north pole.

• Place the South Pole of another magnet next to the South pole, and the North Pole of another magnet next to the South pole.

• Place the North Pole of another magnet next to the South Pole and the North Pole of another magnet next to the north pole.

I don't have an exact answer but this is what i know. sorry man.

Explanation:

If you line up two magnets so that the south pole of one faces the north pole of the other, the magnets will pull toward each other. This is called attraction. If you line the magnets up so that two of the same poles face each other, the magnets will push away.

freezing

deposition

condensation

explanation;

melting also called fusion is the process where solid becomes liquid, sublimation is the process where solid becomes gaseous without first changing to liquid, deposition involves change from gaseous to solid state, freezing involves change from liquid to solid, boiling or evaporation involves change of liquid to gaseous state, while condensation is the change from gaseous state to liquid state.

endothermic reactions involves absorption of heat from the surroundings or the environment while exothermic reactions involves loss of heat energy to the surroundings.

in this case, sublimation, evaporation and melting are endothermic reactions (gain energy from the environment) while, freezing, deposition and condensation are exothermic (loss of energy to the surroundings) reactions.

a, c, d, e are all applying about success strategies.