The best statement would be number 3. Sound waves move perpendicular to the medium particles.
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The Peltier coefficient is a measure of the amount of heat carried by electrons or holes
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Answer:
Hans Christian Oersted began a new scientific epoch when he discovered that electricity and magnetism are linked. He showed by experiment that an electric current flowing through a wire could move a nearby magnet. The discovery of electromagnetism set the stage for the eventual development of our modern technology-based world.
Explanation: