Which of the followidg statements best describes the field of relativity?

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

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

The energy produced as a result of this flow of electrons from atom to atom is called