dchirunga23
04.06.2020 •
Physics
Two speakers create identical 240 Hz sound waves. A person is 1.47 m from Speaker 1. What is the MINIMUM distance to Speaker 2 for there to be destructive interference at that spot? (Hint: v= lambda f=343 m/s) (Unit = m)
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Ответ:
2.90 metres
Explanation:
Distance of speaker 2 =?
Distance of speaker 1 = 1.47m
Velocity = 343
f = 240Hz
For constructive interference to occur:
Difference in distance or path = wavelength
For minimum distance, n = 1
Distance 2 - distance 1 = nλ
Recall λ = v/f
V = Velocity ; f = frequency
Distance 2 - distance 1 = v/f
Distance 2 - 1.47 = (343/240)
Distance 2 = 1.429 + 1.47
Distance 2 = 2.899 meters
Minimum Distance of speaker 2 for their to be constructive interference = 2.90meters
Ответ:
you are awesome and very smart and i hope your dreams will come true
Explanation: