David is a stock clerk in the supermarket. David does only what he is told to do—no more and no less. Does David have a good attitude toward work? EXPLAIN

What properties of a moving object are used in determining the object's energy of motion

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

At what time will the interfering waves have an amplitudeof zero?