HURRY PLEASE Why did the model car move away from the magnet?

the fields repelled
the fields repelled

the fields attracted
the fields attracted

the magnetic car was pushed forward from contact with the magnet
the magnetic car was pushed forward from contact with the magnet

none of the above
none of the above

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude