Physics, 02.03.2020 22:59 welathyasf

And then her friend revs the engine. As the motorcycle accelerates, the engine roars loudly. The high-pitched squeal of the brakes was caused by sound waves, and the equally loud but low-pitched roar of the engine was caused by sound waves.

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And then her friend revs the engine. As the motorcycle accelerates, the engine roars loudly. The hig...

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