A north magnetic pole brought near a south magnetic pole will... A)
cancel the south pole.

B)
attract the south pole.

C)
repel the south pole.

The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

Could someone . i have tried to solve myself but my calculation is off