Physics, 25.02.2022 05:10 leslien3003
In 1845, Dutch scientist Christoph Buys-Ballot developed a test of the Doppler effect. He had a trumpet player sound an A note at 440 Hz while riding on a flatcar pulled by a locomotive. At the same time, a stationary trumpeter played the same note. Buys-Ballot heard 3.0 beats per second. How fast was the train moving toward him?
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In 1845, Dutch scientist Christoph Buys-Ballot developed a test of the Doppler effect. He had a trum...
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