kedjenpierrelouis
25.02.2021 •
Physics
When poked by a spear, an operatic soprano lets out a 1200-Hz shriek. What is its wavelength if the speed of sound is 345 m/s
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Ответ:
0.3m
Explanation:
Given data
Frequency= 1200Hz
Wave length= 345m/s
We know that
v= fλ
substitute
345= 1200*λ
λ = 345/1200
λ= 0.3m
Hence the Wave lenght is 0.3m
Ответ:
Electrons
Explanation:
Conductors can be charged by electrons, while insulators cannot. Insulators inhibit the flow of electrons; conductors allow free flow of electrons.