nicolasdarden
nicolasdarden nicolasdarden
  • 15-03-2022
  • Mathematics
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.......................help........................................................................................................................................................

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NobodyExistsVoid
NobodyExistsVoid NobodyExistsVoid
  • 15-03-2022

Pretty simple.

See that X between Frequency and Wavelength?

Just multiply the two to get speed.

20*2.5

=50

The speed is 50

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