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☆☆☆☆☆generators produce electricity via electromagnetic induction
Units used to measure loudness are Sone (loudness N) and Phon (loudness level L). Scroll down to related links and look at "Loudness - Wikipedia" and "Sound level change and the change of the respective factor of volume and loudness"
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longitudinal waves
sound waves require a medium to transfer energy
FOR A+ USERS THE ANSWER IS Sound waves travel in all directions
sound waves require a medium to transfer energy
-- They are longitudinal waves and material medium is required for their propagation.
A+ They ground current.
Yes circuit breakers can help to prevent building fires. Circuit breakers will trip if an electrical current gets too hot, or if a current becomes overloaded. When a trip happens, the power is stopped to the electrical line, thus stopping the flow of power and the possibility of a fire.
Refraction is caused by light crossing from one medium to another.
When two or more waves occupy the same space at the same time, an interference pattern is created.
Standing waves are the result of an interference of two waves that are traveling along the same medium in opposite directions.
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