samarkanduzbek
21.01.2021 •
Physics
What is the speed of a wave with a frequency of 20 Hz and a wavelength lambda of 0.5 m
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Ответ:
19,200j
Explanation:
formular W=f×d
a) W=240N×20m
= 4,800j
b) W=200N×20m
=4000j
C) Td= 4800×4000\20×50
td= 19,200,000/1000
td= 19,200j
sorry if am wrong ☹️