How are electromagnetic waves produced?
a) an accelerating electric point charge (electron) emits electromagnetic waves.
b) a bar magnet moving in a strong electric field produces electromagnetic waves.
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c) a large electromagnet operated at very high voltages produces electromagnetic waves.
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d) a stable nucleus moving through a stable magnetic field produces electromagnetic waves.

The correct answer is option A, An accelerating electric point charge (electron) emits electromagnetic waves

Explanation:

An accelerating electric charged particle produces electromagnetic waves. The accelerating charged particle produces magnetic and electric field whose magnitude is changing continuously. Thus a changing electric field produces magnetic field and a changing magnetic field produces electric field. This changing electric and magnetic field produces electromagnetic wave which are able to move through a vacuum space and thus need no medium to travel

lexy is right because she has the labeled s

depends on what you mean by "group." for order, it would be coleoptera (beetles). for class, it would be insecta (insects). for phylum, it would be the arthropoda (animals with jointed exoskeletons).

explanation: