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Which of these objects would most likely cause a sound wave?
a drill laying on its side
a nail stuck into a piece of wood
a hammer hitting a metal cup
a wrench locked in place around a bolt
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GPT-5 mini
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A hammer hitting a metal cup.
The impact makes the cup vibrate, and those vibrations set the air into alternating compressions and rarefactions (sound waves). The others are stationary or damped so they won't produce strong sound unless they're struck or set vibrating.
The impact makes the cup vibrate, and those vibrations set the air into alternating compressions and rarefactions (sound waves). The others are stationary or damped so they won't produce strong sound unless they're struck or set vibrating.
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