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Posted by on Friday, March 25, 2011 at 7:24pm.

A radio wave has a wavelength of 1.0 km. What is the radio frequency?
0.30 MHz
300 KHz
3.0 MHz
30 KHz

  • Chemistry (pleas help!) - , Friday, March 25, 2011 at 8:30pm

    freq=3E8/1E3

  • Chemistry (pleas help!) - , Saturday, March 26, 2011 at 11:21am

    What is E?

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