Brock brings a magnet near a metal object. a magnetic force acts on an object, pulling it upward. which of the following best describes the magnetic force?
a) frictional force
b) contact force
c) gravitational force
d) a force that acts at a distance

Option (d) is the correct answer.

Explanation:

Magnetic force is the force which acts from one charged object to another charged or neutral object.

This force acts at a certain distance and if the charged objects are oppositely charged then they attract each other. When the charged objects have same charge then the objects repel each other.

Thus, we can conclude that a force that acts at a distance best describes the magnetic force.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl