The phase velocity of a wave tells us how fast any given phase of the wave is moving e.g. the crest. If we examine some fixed position, then we can count how frequently a full wavelength passes this position as the wave moves with time. This leads us directly to $v = Î»f$.
Beverly Hills, Michigan, in Oakland county, is 3 miles N of Southfield, Michigan and 16 miles NW of Detroit, Michigan. The people of the town are in the Detroit metropolitan area.
Hillsdale County, Michigan (MI) County population in 2014: 45,830 (31% urban, 69% rural); it was 46,527 in 2000. County owner-occupied with a mortgage or a loan houses and condos in 2010: 9,031. County owner-occupied free and clear houses and condos in 2010: 4,903.