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Physics, 06.10.2019 04:00 claplo9141
27. each piston of an engine makes a sharp sound every other revolution of the engine. (a) how fast is a race car going if its eight-cylinder engine emits a sound of frequency 750 hz, given that the engine makes 2000 revolutions per kilometer? (b) at how many revolutions per minute is the engine rotating?
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27. each piston of an engine makes a sharp sound every other revolution of the engine. (a) how fast...
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