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Mathematics, 25.03.2021 21:40, smcardenas02
A wave has a wavelength of 20 mm and a frequency of 7 hertz.
What is its speed?
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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Do you know the correct answer?
A wave has a wavelength of 20 mm and a frequency of 7 hertz.
What is its speed?...
What is its speed?...
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