weinkaufamberp54kqd weinkaufamberp54kqd 10-09-2018 Physics contestada The speed of an electromagnetic wave is a constant, 3.0 × 108 m/s. The wavelength of a wave is 0.3 meters. What is the frequency? 1.0 × 108 Hz 9.0 × 108 Hz 9.0 × 107 Hz 1.0 × 109 Hz