What is the wavelength of radio waves that have a frequency of 530 kHz (5.3* 10^5 Hz) and a speed through air of 3.00* 10^8 m/s?
\(c = \lambda \nu\\ c = 3\times 10^8 m/s\\ \nu = 530 \times 10^3 ~s^{-1}\\ \text{I trust you can multiply}\)
Sure can. Thx for your help.
+1438 
