Why would the bulb not light?

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

The substances that are necessary for producing of certain hormones and that store and transport vitamins

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