The correct answer is C. Dr Smith, who measures 13.5 g/mL on e2020.
Answer: inertia.
Explanation:
Iniertia is states that once an object is in motion it stays in motion until another force is against it.
An electromagnet acquires magnetism through electricity.
A bar magnet comes with magnetism already stored within it and doesn't need to rely on on another object for power.
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