3. Commercial trucks cause about 18 000 lane-change and merging accidents per year in the United States. To prevent many of


3. Commercial trucks cause about 18 000 lane-change and merging accidents per year in the
United States. To prevent many of them, a warning system covering blind spots is being
developed. The system uses electromagnetic waves of frequency 2.40 1010 Hz. What is the
wavelength of these waves?


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