A tsunami is a series of huge waves caused by earthquakes underwater. If a tsunami is traveling at 970 km/h with a wavelength of 450 km, what is the frequency of the wave?

Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k